svn commit: r368251 - in releng: 11.4/contrib/tzdata 12.1/contrib/tzdata 12.2/contrib/tzdata

Gordon Tetlow gordon at FreeBSD.org
Tue Dec 1 19:35:50 UTC 2020


Author: gordon
Date: Tue Dec  1 19:35:48 2020
New Revision: 368251
URL: https://svnweb.freebsd.org/changeset/base/368251

Log:
  Update timezone database information.
  
  Approved by:	so
  Security:	FreeBSD-EN-20:20.tzdata

Modified:
  releng/11.4/contrib/tzdata/Makefile
  releng/11.4/contrib/tzdata/NEWS
  releng/11.4/contrib/tzdata/README
  releng/11.4/contrib/tzdata/africa
  releng/11.4/contrib/tzdata/antarctica
  releng/11.4/contrib/tzdata/asia
  releng/11.4/contrib/tzdata/australasia
  releng/11.4/contrib/tzdata/backzone
  releng/11.4/contrib/tzdata/europe
  releng/11.4/contrib/tzdata/leap-seconds.list
  releng/11.4/contrib/tzdata/leapseconds
  releng/11.4/contrib/tzdata/leapseconds.awk
  releng/11.4/contrib/tzdata/northamerica
  releng/11.4/contrib/tzdata/southamerica
  releng/11.4/contrib/tzdata/theory.html
  releng/11.4/contrib/tzdata/version
  releng/11.4/contrib/tzdata/ziguard.awk
  releng/11.4/contrib/tzdata/zishrink.awk
  releng/11.4/contrib/tzdata/zoneinfo2tdf.pl
  releng/12.1/contrib/tzdata/Makefile
  releng/12.1/contrib/tzdata/NEWS
  releng/12.1/contrib/tzdata/README
  releng/12.1/contrib/tzdata/africa
  releng/12.1/contrib/tzdata/antarctica
  releng/12.1/contrib/tzdata/asia
  releng/12.1/contrib/tzdata/australasia
  releng/12.1/contrib/tzdata/backzone
  releng/12.1/contrib/tzdata/europe
  releng/12.1/contrib/tzdata/leap-seconds.list
  releng/12.1/contrib/tzdata/leapseconds
  releng/12.1/contrib/tzdata/leapseconds.awk
  releng/12.1/contrib/tzdata/northamerica
  releng/12.1/contrib/tzdata/southamerica
  releng/12.1/contrib/tzdata/theory.html
  releng/12.1/contrib/tzdata/version
  releng/12.1/contrib/tzdata/ziguard.awk
  releng/12.1/contrib/tzdata/zishrink.awk
  releng/12.1/contrib/tzdata/zoneinfo2tdf.pl
  releng/12.2/contrib/tzdata/Makefile
  releng/12.2/contrib/tzdata/NEWS
  releng/12.2/contrib/tzdata/README
  releng/12.2/contrib/tzdata/africa
  releng/12.2/contrib/tzdata/antarctica
  releng/12.2/contrib/tzdata/asia
  releng/12.2/contrib/tzdata/australasia
  releng/12.2/contrib/tzdata/backzone
  releng/12.2/contrib/tzdata/europe
  releng/12.2/contrib/tzdata/leap-seconds.list
  releng/12.2/contrib/tzdata/leapseconds
  releng/12.2/contrib/tzdata/leapseconds.awk
  releng/12.2/contrib/tzdata/northamerica
  releng/12.2/contrib/tzdata/southamerica
  releng/12.2/contrib/tzdata/theory.html
  releng/12.2/contrib/tzdata/version
  releng/12.2/contrib/tzdata/ziguard.awk
  releng/12.2/contrib/tzdata/zishrink.awk
  releng/12.2/contrib/tzdata/zoneinfo2tdf.pl

Modified: releng/11.4/contrib/tzdata/Makefile
==============================================================================
--- releng/11.4/contrib/tzdata/Makefile	Tue Dec  1 19:35:48 2020	(r368250)
+++ releng/11.4/contrib/tzdata/Makefile	Tue Dec  1 19:35:48 2020	(r368251)
@@ -22,13 +22,13 @@ BUGEMAIL=	tz at iana.org
 #	DATAFORM=	main
 # To wait even longer for new features, use:
 #	DATAFORM=	rearguard
+# Rearguard users might also want "ZFLAGS = -b fat"; see below.
 DATAFORM=		main
 
 # Change the line below for your timezone (after finding the one you want in
 # one of the $(TDATA) source files, or adding it to a source file).
 # Alternatively, if you discover you've got the wrong timezone, you can just
-#	zic -l rightzone
-# to correct things.
+# 'zic -l -' to remove it, or 'zic -l rightzone' to change it.
 # Use the command
 #	make zonenames
 # to get a list of the values you can use for LOCALTIME.
@@ -37,33 +37,30 @@ LOCALTIME=	GMT
 
 # The POSIXRULES macro controls interpretation of nonstandard and obsolete
 # POSIX-like TZ settings like TZ='EET-2EEST' that lack DST transition rules.
-# In the reference implementation, if you want something other than Eastern
-# United States time as a template for handling these settings, you can
-# change the line below (after finding the timezone you want in the
-# one of the $(TDATA) source files, or adding it to a source file).
-# A setting like TZ='EET-2EEST' is supposed to use the rules in the
-# template file to determine "spring forward" and "fall back" days and
-# times; the environment variable itself specifies UT offsets of standard and
-# daylight saving time.
-# Alternatively, if you discover you've got the wrong timezone, you can just
-#	zic -p rightzone
-# to correct things.
-# Use the command
-#	make zonenames
-# to get a list of the values you can use for POSIXRULES.
+# Such a setting uses the rules in a template file to determine
+# "spring forward" and "fall back" days and times; the environment
+# variable itself specifies UT offsets of standard and daylight saving time.
 #
-# If POSIXRULES is empty, no template is installed; this is the intended
-# future default for POSIXRULES.
+# If POSIXRULES is '-', no template is installed; this is the default.
 #
-# Nonempty POSIXRULES is obsolete and should not be relied on, because:
+# Any other value for POSIXRULES is obsolete and should not be relied on, as:
 # * It does not work correctly in popular implementations such as GNU/Linux.
 # * It does not work in the tzdb implementation for timestamps after 2037.
 # * It is incompatible with 'zic -b slim' if POSIXRULES specifies transitions
 #   at standard time or UT rather than at local time.
 # In short, software should avoid ruleless settings like TZ='EET-2EEST'
 # and so should not depend on the value of POSIXRULES.
+#
+# If, despite the above, you want a template for handling these settings,
+# you can change the line below (after finding the timezone you want in the
+# one of the $(TDATA) source files, or adding it to a source file).
+# Alternatively, if you discover you've got the wrong timezone, you can just
+# 'zic -p -' to remove it, or 'zic -p rightzone' to change it.
+# Use the command
+#	make zonenames
+# to get a list of the values you can use for POSIXRULES.
 
-POSIXRULES=	America/New_York
+POSIXRULES=	-
 
 # Also see TZDEFRULESTRING below, which takes effect only
 # if the time zone files cannot be accessed.
@@ -172,9 +169,6 @@ TZDATA_TEXT=	leapseconds tzdata.zi
 
 # For backward-compatibility links for old zone names, use
 #	BACKWARD=	backward
-# If you also want the link US/Pacific-New, even though it is confusing
-# and is planned to be removed from the database eventually, use
-#	BACKWARD=	backward pacificnew
 # To omit these links, use
 #	BACKWARD=
 
@@ -192,10 +186,6 @@ PACKRATDATA=
 
 UTF8_LOCALE=	en_US.utf8
 
-# Since "." may not be in PATH...
-
-YEARISTYPE=	./yearistype
-
 # Non-default libraries needed to link.
 LDLIBS=
 
@@ -253,13 +243,12 @@ LDLIBS=
 #	other than simply getting garbage data
 #  -DUSE_LTZ=0 to build zdump with the system time zone library
 #	Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below.
-#  -DZIC_BLOAT_DEFAULT=\"slim\" to default zic's -b option to "slim", and
-#	similarly for "fat".  Fat TZif files work around incompatibilities
+#  -DZIC_BLOAT_DEFAULT=\"fat\" to default zic's -b option to "fat", and
+#	similarly for "slim".  Fat TZif files work around incompatibilities
 #	and bugs in some TZif readers, notably readers that mishandle 64-bit
 #	data in TZif files.  Slim TZif files are more efficient and do not
 #	work around these incompatibilities and bugs.  If not given, the
-#	current default is "fat" but this is intended to change as readers
-#	requiring fat files often mishandle timestamps after 2037 anyway.
+#	default is "slim".
 #  -DZIC_MAX_ABBR_LEN_WO_WARN=3
 #	(or some other number) to set the maximum time zone abbreviation length
 #	that zic will accept without a warning (the default is 6)
@@ -333,9 +322,8 @@ GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \
 # add
 #	-DSTD_INSPIRED
 # to the end of the "CFLAGS=" line.  This arranges for the functions
-# "tzsetwall", "offtime", "timelocal", "timegm", "timeoff",
+# "offtime", "timelocal", "timegm", "timeoff",
 # "posix2time", and "time2posix" to be added to the time conversion library.
-# "tzsetwall" is deprecated and is intended to be removed soon; see NEWS.
 # "offtime" is like "gmtime" except that it accepts a second (long) argument
 # that gives an offset to add to the time_t when converting it.
 # "timelocal" is equivalent to "mktime".
@@ -395,7 +383,7 @@ ZIC=		$(zic) $(ZFLAGS)
 
 # To shrink the size of installed TZif files,
 # append "-r @N" to omit data before N-seconds-after-the-Epoch.
-# You can also append "-b slim" if that is not already the default;
+# To grow the files and work around older application bugs, append "-b fat";
 # see ZIC_BLOAT_DEFAULT above.
 # See the zic man page for more about -b and -r.
 ZFLAGS=
@@ -424,26 +412,6 @@ CURL=		curl
 # Name of GNU Privacy Guard <https://gnupg.org/>, used to sign distributions.
 GPG=		gpg
 
-# The path where SGML DTDs are kept and the catalog file(s) to use when
-# validating HTML 4.01.  The default should work on both Debian and Red Hat.
-SGML_TOPDIR= /usr
-SGML_DTDDIR= $(SGML_TOPDIR)/share/xml/w3c-sgml-lib/schema/dtd
-SGML_SEARCH_PATH= $(SGML_DTDDIR)/REC-html401-19991224
-SGML_CATALOG_FILES= \
-  $(SGML_TOPDIR)/share/doc/w3-recs/html/www.w3.org/TR/1999/REC-html401-19991224/HTML4.cat:$(SGML_TOPDIR)/share/sgml/html/4.01/HTML4.cat
-
-# The name, arguments and environment of a program to validate HTML 4.01.
-# See <http://openjade.sourceforge.net/doc/> for a validator, and
-# <https://validator.w3.org/source/> for a validation library.
-# Set VALIDATE=':' if you do not have such a program.
-VALIDATE = nsgmls
-VALIDATE_FLAGS = -s -B -wall -wno-unused-param
-VALIDATE_ENV = \
-  SGML_CATALOG_FILES='$(SGML_CATALOG_FILES)' \
-  SGML_SEARCH_PATH='$(SGML_SEARCH_PATH)' \
-  SP_CHARSET_FIXED=YES \
-  SP_ENCODING=UTF-8
-
 # This expensive test requires USE_LTZ.
 # To suppress it, define this macro to be empty.
 CHECK_TIME_T_ALTERNATIVES = check_time_t_alternatives
@@ -538,8 +506,8 @@ DOCS=		$(MANS) date.1 $(MANTXTS) $(WEB_PAGES)
 PRIMARY_YDATA=	africa antarctica asia australasia \
 		europe northamerica southamerica
 YDATA=		$(PRIMARY_YDATA) etcetera
-NDATA=		systemv factory
-TDATA_TO_CHECK=	$(YDATA) $(NDATA) backward pacificnew
+NDATA=		factory
+TDATA_TO_CHECK=	$(YDATA) $(NDATA) backward
 TDATA=		$(YDATA) $(NDATA) $(BACKWARD)
 ZONETABLES=	zone1970.tab zone.tab
 TABDATA=	iso3166.tab $(TZDATA_TEXT) $(ZONETABLES)
@@ -547,7 +515,7 @@ LEAP_DEPS=	leapseconds.awk leap-seconds.list
 TZDATA_ZI_DEPS=	ziguard.awk zishrink.awk version $(TDATA) $(PACKRATDATA)
 DSTDATA_ZI_DEPS= ziguard.awk $(TDATA) $(PACKRATDATA)
 DATA=		$(TDATA_TO_CHECK) backzone iso3166.tab leap-seconds.list \
-			leapseconds yearistype.sh $(ZONETABLES)
+			leapseconds $(ZONETABLES)
 AWK_SCRIPTS=	checklinks.awk checktab.awk leapseconds.awk \
 			ziguard.awk zishrink.awk
 MISC=		$(AWK_SCRIPTS) zoneinfo2tdf.pl
@@ -573,12 +541,10 @@ VERSION_DEPS= \
 		etcetera europe factory iso3166.tab \
 		leap-seconds.list leapseconds.awk localtime.c \
 		newctime.3 newstrftime.3 newtzset.3 northamerica \
-		pacificnew private.h \
-		southamerica strftime.c systemv theory.html \
+		private.h southamerica strftime.c theory.html \
 		time2posix.3 tz-art.html tz-how-to.html tz-link.html \
 		tzfile.5 tzfile.h tzselect.8 tzselect.ksh \
-		workman.sh yearistype.sh \
-		zdump.8 zdump.c zic.8 zic.c \
+		workman.sh zdump.8 zdump.c zic.8 zic.c \
 		ziguard.awk zishrink.awk \
 		zone.tab zone1970.tab zoneinfo2tdf.pl
 
@@ -587,7 +553,7 @@ VERSION_DEPS= \
 
 SHELL=		/bin/sh
 
-all:		tzselect yearistype zic zdump libtz.a $(TABDATA) \
+all:		tzselect zic zdump libtz.a $(TABDATA) \
 		  vanguard.zi main.zi rearguard.zi
 
 ALL:		all date $(ENCHILADA)
@@ -657,10 +623,6 @@ zdump:		$(TZDOBJS)
 zic:		$(TZCOBJS)
 		$(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(TZCOBJS) $(LDLIBS)
 
-yearistype:	yearistype.sh
-		cp yearistype.sh yearistype
-		chmod +x yearistype
-
 leapseconds:	$(LEAP_DEPS)
 		$(AWK) -v EXPIRES_LINE=$(EXPIRES_LINE) \
 		  -f leapseconds.awk leap-seconds.list >$@.out
@@ -675,10 +637,9 @@ INSTALLARGS = \
  PACKRATDATA='$(PACKRATDATA)' \
  TZDEFAULT='$(TZDEFAULT)' \
  TZDIR='$(TZDIR)' \
- YEARISTYPE='$(YEARISTYPE)' \
  ZIC='$(ZIC)'
 
-INSTALL_DATA_DEPS = zic leapseconds yearistype tzdata.zi
+INSTALL_DATA_DEPS = zic leapseconds tzdata.zi
 
 # 'make install_data' installs one set of TZif files.
 install_data: $(INSTALL_DATA_DEPS)
@@ -793,7 +754,7 @@ check_character_set: $(ENCHILADA)
 		! grep -Env $(SAFE_LINE)'|^UNUSUAL_OK_'$(OK_CHAR)'*$$' \
 			Makefile && \
 		! grep -Env $(SAFE_SHARP_LINE) $(TDATA_TO_CHECK) backzone \
-			leapseconds yearistype.sh zone.tab && \
+			leapseconds zone.tab && \
 		! grep -Env $(OK_LINE) $(ENCHILADA); \
 	}
 	touch $@
@@ -845,15 +806,13 @@ check_tzs:	$(TZS) $(TZS_NEW)
 check_web:	$(CHECK_WEB_PAGES)
 check_theory.html: theory.html
 check_tz-art.html: tz-art.html
+check_tz-how-to.html: tz-how-to.html
 check_tz-link.html: tz-link.html
-check_theory.html check_tz-art.html check_tz-link.html:
+check_theory.html check_tz-art.html check_tz-how-to.html check_tz-link.html:
 		$(CURL) -sS --url https://validator.w3.org/nu/ -F out=gnu \
 		    -F file=@$$(expr $@ : 'check_\(.*\)') -o $@.out && \
 		  test ! -s $@.out || { cat $@.out; exit 1; }
 		mv $@.out $@
-check_tz-how-to.html: tz-how-to.html
-		$(VALIDATE_ENV) $(VALIDATE) $(VALIDATE_FLAGS) tz-how-to.html
-		touch $@
 
 # Check that zishrink.awk does not alter the data, and that ziguard.awk
 # preserves main-format data.
@@ -883,7 +842,7 @@ clean_misc:
 		rm -fr check_*.dir
 		rm -f *.o *.out $(TIME_T_ALTERNATIVES) \
 		  check_* core typecheck_* \
-		  date tzselect version.h zdump zic yearistype libtz.a
+		  date tzselect version.h zdump zic libtz.a
 clean:		clean_misc
 		rm -fr *.dir tzdb-*/
 		rm -f *.zi $(TZS_NEW)
@@ -1063,10 +1022,14 @@ tzdata$(VERSION)-rearguard.tar.gz: rearguard.zi set-ti
 		done
 		sed '1s/$$/-rearguard/' \
 		  <version >tzdata$(VERSION)-rearguard.dir/version
+		: The dummy pacificnew pacifies TZUpdater 2.3.1 and earlier.
+		TZ=UTC0 touch -mt 202010122253.00 \
+		  tzdata$(VERSION)-rearguard.dir/pacificnew
 		touch -cmr version tzdata$(VERSION)-rearguard.dir/version
 		LC_ALL=C && export LC_ALL && \
 		  (cd tzdata$(VERSION)-rearguard.dir && \
-		   tar $(TARFLAGS) -cf - $(COMMON) $(DATA) $(MISC) | \
+		   tar $(TARFLAGS) -cf - \
+			$(COMMON) $(DATA) $(MISC) pacificnew | \
 		     gzip $(GZIPFLAGS)) >$@.out
 		mv $@.out $@
 

Modified: releng/11.4/contrib/tzdata/NEWS
==============================================================================
--- releng/11.4/contrib/tzdata/NEWS	Tue Dec  1 19:35:48 2020	(r368250)
+++ releng/11.4/contrib/tzdata/NEWS	Tue Dec  1 19:35:48 2020	(r368251)
@@ -1,5 +1,114 @@
 News for the tz database
 
+Release 2020d - 2020-10-21 11:24:13 -0700
+
+  Briefly:
+    Palestine ends DST earlier than predicted, on 2020-10-24.
+
+  Changes to past and future timestamps
+
+    Palestine ends DST on 2020-10-24 at 01:00, instead of 2020-10-31
+    as previously predicted (thanks to Sharef Mustafa.)  Its
+    2019-10-26 fall-back was at 00:00, not 01:00 (thanks to Steffen
+    Thorsen.)  Its 2015-10-23 transition was at 01:00 not 00:00, and
+    its spring 2020 transition was on March 28 at 00:00, not March 27
+    (thanks to Pierre Cashon.)  This affects Asia/Gaza and
+    Asia/Hebron.  Assume future spring and fall transitions will be on
+    the Saturday preceding the last Sunday of March and October,
+    respectively.
+
+
+Release 2020c - 2020-10-16 11:15:53 -0700
+
+  Briefly:
+    Fiji starts DST later than usual, on 2020-12-20.
+
+  Changes to future timestamps
+
+    Fiji will start DST on 2020-12-20, instead of 2020-11-08 as
+    previously predicted.  DST will still end on 2021-01-17.
+    (Thanks to Raymond Kumar and Alan Mintz.)  Assume for now that
+    the later-than-usual start date is a one-time departure from the
+    recent pattern.
+
+  Changes to build procedure
+
+    Rearguard tarballs now contain an empty file pacificnew.
+    Some older downstream software expects this file to exist.
+    (Problem reported by Mike Cullinan.)
+
+
+Release 2020b - 2020-10-06 18:35:04 -0700
+
+  Briefly:
+    Revised predictions for Morocco's changes starting in 2023.
+    Canada's Yukon changes to -07 on 2020-11-01, not 2020-03-08.
+    Macquarie Island has stayed in sync with Tasmania since 2011.
+    Casey, Antarctica is at +08 in winter and +11 in summer.
+    zic no longer supports -y, nor the TYPE field of Rules.
+
+  Changes to future timestamps
+
+    Morocco's spring-forward after Ramadan is now predicted to occur
+    no sooner than two days after Ramadan, instead of one day.
+    (Thanks to Milamber.)  The first altered prediction is for 2023,
+    now predicted to spring-forward on April 30 instead of April 23.
+
+  Changes to past and future timestamps
+
+   Casey Station, Antarctica has been using +08 in winter and +11 in
+   summer since 2018.  The most recent transition from +08 to +11 was
+   2020-10-04 00:01.  Also, Macquarie Island has been staying in
+   sync with Tasmania since 2011.  (Thanks to Steffen Thorsen.)
+
+  Changes to past and future time zone abbreviations and DST flags
+
+    Canada's Yukon, represented by America/Whitehorse and
+    America/Dawson, changes its time zone rules from -08/-07 to
+    permanent -07 on 2020-11-01, not on 2020-03-08 as 2020a had it.
+    This change affects only the time zone abbreviation (MST vs PDT)
+    and daylight saving flag for the period between the two dates.
+    (Thanks to Andrew G. Smith.)
+
+  Changes to past timestamps
+
+    Correct several transitions for Hungary for 1918/1983.
+    For example, the 1983-09-25 fall-back was at 01:00, not 03:00.
+    (Thanks to Géza Nyáry.)  Also, the 1890 transition to standard
+    time was on 11-01, not 10-01 (thanks to Michael Deckers).
+
+    The 1891 French transition was on March 16, not March 15.  The
+    1911-03-11 French transition was at midnight, not a minute later.
+    Monaco's transitions were on 1892-06-01 and 1911-03-29, not
+    1891-03-15 and 1911-03-11.  (Thanks to Michael Deckers.)
+
+  Changes to code
+
+    Support for zic's long-obsolete '-y YEARISTYPE' option has been
+    removed and, with it, so has support for the TYPE field in Rule
+    lines, which is now reserved for compatibility with earlier zic.
+    These features were previously deprecated in release 2015f.
+    (Thanks to Tim Parenti.)
+
+    zic now defaults to '-b slim' instead of to '-b fat'.
+
+    zic's new '-l -' and '-p -' options uninstall any existing
+    localtime and posixrules files, respectively.
+
+    The undocumented and ineffective tzsetwall function has been
+    removed.
+
+  Changes to build procedure
+
+    The Makefile now defaults POSIXRULES to '-', so the posixrules
+    feature (obsolete as of 2019b) is no longer installed by default.
+
+  Changes to documentation and commentary
+
+    The long-obsolete files pacificnew, systemv, and yearistype.sh have
+    been removed from the distribution.  (Thanks to Tim Parenti.)
+
+
 Release 2020a - 2020-04-23 16:03:47 -0700
 
   Briefly:

Modified: releng/11.4/contrib/tzdata/README
==============================================================================
--- releng/11.4/contrib/tzdata/README	Tue Dec  1 19:35:48 2020	(r368250)
+++ releng/11.4/contrib/tzdata/README	Tue Dec  1 19:35:48 2020	(r368251)
@@ -20,6 +20,8 @@ substituting your desired installation directory for "
 	make TOPDIR=$HOME/tzdir install
 	$HOME/tzdir/usr/bin/zdump -v America/Los_Angeles
 
+See the file tz-how-to.html for examples of how to read the data files.
+
 This database of historical local time information has several goals:
 
  * Provide a compendium of data about the history of civil time that

Modified: releng/11.4/contrib/tzdata/africa
==============================================================================
--- releng/11.4/contrib/tzdata/africa	Tue Dec  1 19:35:48 2020	(r368250)
+++ releng/11.4/contrib/tzdata/africa	Tue Dec  1 19:35:48 2020	(r368251)
@@ -64,7 +64,7 @@
 # Corrections are welcome.
 
 # Algeria
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Algeria	1916	only	-	Jun	14	23:00s	1:00	S
 Rule	Algeria	1916	1919	-	Oct	Sun>=1	23:00s	0	-
 Rule	Algeria	1917	only	-	Mar	24	23:00s	1:00	S
@@ -87,10 +87,9 @@ Rule	Algeria	1978	only	-	Mar	24	 1:00	1:00	S
 Rule	Algeria	1978	only	-	Sep	22	 3:00	0	-
 Rule	Algeria	1980	only	-	Apr	25	 0:00	1:00	S
 Rule	Algeria	1980	only	-	Oct	31	 2:00	0	-
-# Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's
-# more precise 0:09:21.
+# See Europe/Paris for PMT-related transitions.
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Africa/Algiers	0:12:12 -	LMT	1891 Mar 15  0:01
+Zone	Africa/Algiers	0:12:12 -	LMT	1891 Mar 16
 			0:09:21	-	PMT	1911 Mar 11 # Paris Mean Time
 			0:00	Algeria	WE%sT	1940 Feb 25  2:00
 			1:00	Algeria	CE%sT	1946 Oct  7
@@ -176,7 +175,7 @@ Link Africa/Abidjan Atlantic/St_Helena	# St Helena
 # Egypt was mean noon at the Great Pyramid, 2:04:30.5, but apparently this
 # did not apply to Cairo, Alexandria, or Port Said.
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Egypt	1940	only	-	Jul	15	0:00	1:00	S
 Rule	Egypt	1940	only	-	Oct	 1	0:00	0	-
 Rule	Egypt	1941	only	-	Apr	15	0:00	1:00	S
@@ -411,7 +410,7 @@ Zone	Africa/Cairo	2:05:09 -	LMT	1900 Oct
 # now Ghana observed different DST regimes in different years.  For
 # lack of better info, use Shanks except treat the minus sign as a
 # typo, and assume DST started in 1920 not 1936.
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Ghana	1920	1942	-	Sep	 1	0:00	0:20	-
 Rule	Ghana	1920	1942	-	Dec	31	0:00	0	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
@@ -501,7 +500,7 @@ Zone	Africa/Monrovia	-0:43:08 -	LMT	1882
 # From Paul Eggert (2013-10-25):
 # For now, assume they're reverting to the pre-2012 rules of permanent UT +02.
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Libya	1951	only	-	Oct	14	2:00	1:00	S
 Rule	Libya	1952	only	-	Jan	 1	0:00	0	-
 Rule	Libya	1953	only	-	Oct	 9	2:00	1:00	S
@@ -624,7 +623,7 @@ Zone	Africa/Tripoli	0:52:44 -	LMT	1920
 # "The trial ended on March 29, 2009, when the clocks moved back by one hour
 # at 2am (or 02:00) local time..."
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule Mauritius	1982	only	-	Oct	10	0:00	1:00	-
 Rule Mauritius	1983	only	-	Mar	21	0:00	0	-
 Rule Mauritius	2008	only	-	Oct	lastSun	2:00	1:00	-
@@ -875,17 +874,30 @@ Zone Indian/Mauritius	3:50:00 -	LMT	1907 # Port Louis
 # https://maroc-diplomatique.net/maroc-le-retour-a-lheure-gmt-est-prevu-dimanche-prochain/
 # http://aujourdhui.ma/actualite/gmt1-retour-a-lheure-normale-dimanche-prochain-1
 #
-# From Paul Eggert (2020-04-14):
+# From Milamber (2020-05-31)
+# In Morocco (where I live), the end of Ramadan (Arabic month) is followed by
+# the Eid al-Fitr, and concretely it's 1 or 2 day offs for the people (with
+# traditional visiting of family, big lunches/dinners, etc.).  So for this
+# year the astronomical calculations don't include the following 2 days off in
+# the calc.  These 2 days fall in a Sunday/Monday, so it's not acceptable by
+# people to have a time shift during these 2 days off.  Perhaps you can modify
+# the (predicted) rules for next years: if the end of Ramadan is a (probable)
+# Friday or Saturday (and so the 2 days off are on a weekend), the next time
+# shift will be the next weekend.
+#
+# From Paul Eggert (2020-05-31):
 # For now, guess that in the future Morocco will fall back at 03:00
 # the last Sunday before Ramadan, and spring forward at 02:00 the
-# first Sunday after the day after Ramadan.  To implement this,
-# transition dates for 2021 through 2087 were determined by running
-# the following program under GNU Emacs 26.3.
-# (let ((islamic-year 1442))
+# first Sunday after two days after Ramadan.  To implement this,
+# transition dates and times for 2019 through 2087 were determined by
+# running the following program under GNU Emacs 26.3.  (This algorithm
+# also produces the correct transition dates for 2016 through 2018,
+# though the times differ due to Morocco's time zone change in 2018.)
+# (let ((islamic-year 1440))
 #   (require 'cal-islam)
 #   (while (< islamic-year 1511)
 #     (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
-#           (b (1+ (calendar-islamic-to-absolute (list 10 1 islamic-year))))
+#           (b (+ 2 (calendar-islamic-to-absolute (list 10 1 islamic-year))))
 #           (sunday 0))
 #       (while (/= sunday (mod (setq a (1- a)) 7)))
 #       (while (/= sunday (mod b 7))
@@ -900,7 +912,7 @@ Zone Indian/Mauritius	3:50:00 -	LMT	1907 # Port Louis
 #         (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
 #     (setq islamic-year (+ 1 islamic-year))))
 
-# RULE	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Morocco	1939	only	-	Sep	12	 0:00	1:00	-
 Rule	Morocco	1939	only	-	Nov	19	 0:00	0	-
 Rule	Morocco	1940	only	-	Feb	25	 0:00	1:00	-
@@ -951,7 +963,7 @@ Rule	Morocco	2021	only	-	May	16	 2:00	0	-
 Rule	Morocco	2022	only	-	Mar	27	 3:00	-1:00	-
 Rule	Morocco	2022	only	-	May	 8	 2:00	0	-
 Rule	Morocco	2023	only	-	Mar	19	 3:00	-1:00	-
-Rule	Morocco	2023	only	-	Apr	23	 2:00	0	-
+Rule	Morocco	2023	only	-	Apr	30	 2:00	0	-
 Rule	Morocco	2024	only	-	Mar	10	 3:00	-1:00	-
 Rule	Morocco	2024	only	-	Apr	14	 2:00	0	-
 Rule	Morocco	2025	only	-	Feb	23	 3:00	-1:00	-
@@ -967,7 +979,7 @@ Rule	Morocco	2029	only	-	Feb	18	 2:00	0	-
 Rule	Morocco	2029	only	-	Dec	30	 3:00	-1:00	-
 Rule	Morocco	2030	only	-	Feb	10	 2:00	0	-
 Rule	Morocco	2030	only	-	Dec	22	 3:00	-1:00	-
-Rule	Morocco	2031	only	-	Jan	26	 2:00	0	-
+Rule	Morocco	2031	only	-	Feb	 2	 2:00	0	-
 Rule	Morocco	2031	only	-	Dec	14	 3:00	-1:00	-
 Rule	Morocco	2032	only	-	Jan	18	 2:00	0	-
 Rule	Morocco	2032	only	-	Nov	28	 3:00	-1:00	-
@@ -983,7 +995,7 @@ Rule	Morocco	2036	only	-	Nov	23	 2:00	0	-
 Rule	Morocco	2037	only	-	Oct	 4	 3:00	-1:00	-
 Rule	Morocco	2037	only	-	Nov	15	 2:00	0	-
 Rule	Morocco	2038	only	-	Sep	26	 3:00	-1:00	-
-Rule	Morocco	2038	only	-	Oct	31	 2:00	0	-
+Rule	Morocco	2038	only	-	Nov	 7	 2:00	0	-
 Rule	Morocco	2039	only	-	Sep	18	 3:00	-1:00	-
 Rule	Morocco	2039	only	-	Oct	23	 2:00	0	-
 Rule	Morocco	2040	only	-	Sep	 2	 3:00	-1:00	-
@@ -999,7 +1011,7 @@ Rule	Morocco	2044	only	-	Aug	28	 2:00	0	-
 Rule	Morocco	2045	only	-	Jul	 9	 3:00	-1:00	-
 Rule	Morocco	2045	only	-	Aug	20	 2:00	0	-
 Rule	Morocco	2046	only	-	Jul	 1	 3:00	-1:00	-
-Rule	Morocco	2046	only	-	Aug	 5	 2:00	0	-
+Rule	Morocco	2046	only	-	Aug	12	 2:00	0	-
 Rule	Morocco	2047	only	-	Jun	23	 3:00	-1:00	-
 Rule	Morocco	2047	only	-	Jul	28	 2:00	0	-
 Rule	Morocco	2048	only	-	Jun	 7	 3:00	-1:00	-
@@ -1015,7 +1027,7 @@ Rule	Morocco	2052	only	-	Jun	 2	 2:00	0	-
 Rule	Morocco	2053	only	-	Apr	13	 3:00	-1:00	-
 Rule	Morocco	2053	only	-	May	25	 2:00	0	-
 Rule	Morocco	2054	only	-	Apr	 5	 3:00	-1:00	-
-Rule	Morocco	2054	only	-	May	10	 2:00	0	-
+Rule	Morocco	2054	only	-	May	17	 2:00	0	-
 Rule	Morocco	2055	only	-	Mar	28	 3:00	-1:00	-
 Rule	Morocco	2055	only	-	May	 2	 2:00	0	-
 Rule	Morocco	2056	only	-	Mar	12	 3:00	-1:00	-
@@ -1031,7 +1043,7 @@ Rule	Morocco	2060	only	-	Mar	 7	 2:00	0	-
 Rule	Morocco	2061	only	-	Jan	16	 3:00	-1:00	-
 Rule	Morocco	2061	only	-	Feb	27	 2:00	0	-
 Rule	Morocco	2062	only	-	Jan	 8	 3:00	-1:00	-
-Rule	Morocco	2062	only	-	Feb	12	 2:00	0	-
+Rule	Morocco	2062	only	-	Feb	19	 2:00	0	-
 Rule	Morocco	2062	only	-	Dec	31	 3:00	-1:00	-
 Rule	Morocco	2063	only	-	Feb	 4	 2:00	0	-
 Rule	Morocco	2063	only	-	Dec	16	 3:00	-1:00	-
@@ -1047,7 +1059,7 @@ Rule	Morocco	2067	only	-	Dec	11	 2:00	0	-
 Rule	Morocco	2068	only	-	Oct	21	 3:00	-1:00	-
 Rule	Morocco	2068	only	-	Dec	 2	 2:00	0	-
 Rule	Morocco	2069	only	-	Oct	13	 3:00	-1:00	-
-Rule	Morocco	2069	only	-	Nov	17	 2:00	0	-
+Rule	Morocco	2069	only	-	Nov	24	 2:00	0	-
 Rule	Morocco	2070	only	-	Oct	 5	 3:00	-1:00	-
 Rule	Morocco	2070	only	-	Nov	 9	 2:00	0	-
 Rule	Morocco	2071	only	-	Sep	20	 3:00	-1:00	-
@@ -1063,7 +1075,7 @@ Rule	Morocco	2075	only	-	Sep	15	 2:00	0	-
 Rule	Morocco	2076	only	-	Jul	26	 3:00	-1:00	-
 Rule	Morocco	2076	only	-	Sep	 6	 2:00	0	-
 Rule	Morocco	2077	only	-	Jul	18	 3:00	-1:00	-
-Rule	Morocco	2077	only	-	Aug	22	 2:00	0	-
+Rule	Morocco	2077	only	-	Aug	29	 2:00	0	-
 Rule	Morocco	2078	only	-	Jul	10	 3:00	-1:00	-
 Rule	Morocco	2078	only	-	Aug	14	 2:00	0	-
 Rule	Morocco	2079	only	-	Jun	25	 3:00	-1:00	-
@@ -1073,13 +1085,13 @@ Rule	Morocco	2080	only	-	Jul	21	 2:00	0	-
 Rule	Morocco	2081	only	-	Jun	 1	 3:00	-1:00	-
 Rule	Morocco	2081	only	-	Jul	13	 2:00	0	-
 Rule	Morocco	2082	only	-	May	24	 3:00	-1:00	-
-Rule	Morocco	2082	only	-	Jun	28	 2:00	0	-
+Rule	Morocco	2082	only	-	Jul	 5	 2:00	0	-
 Rule	Morocco	2083	only	-	May	16	 3:00	-1:00	-
 Rule	Morocco	2083	only	-	Jun	20	 2:00	0	-
 Rule	Morocco	2084	only	-	Apr	30	 3:00	-1:00	-
 Rule	Morocco	2084	only	-	Jun	11	 2:00	0	-
 Rule	Morocco	2085	only	-	Apr	22	 3:00	-1:00	-
-Rule	Morocco	2085	only	-	May	27	 2:00	0	-
+Rule	Morocco	2085	only	-	Jun	 3	 2:00	0	-
 Rule	Morocco	2086	only	-	Apr	14	 3:00	-1:00	-
 Rule	Morocco	2086	only	-	May	19	 2:00	0	-
 Rule	Morocco	2087	only	-	Mar	30	 3:00	-1:00	-
@@ -1180,7 +1192,7 @@ Link Africa/Maputo Africa/Lusaka	# Zambia
 # Use plain "WAT" and "CAT" for the time zone abbreviations, to be compatible
 # with Namibia's neighbors.
 
-# RULE	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 # Vanguard section, for zic and other parsers that support negative DST.
 Rule	Namibia	1994	only	-	Mar	21	0:00	-1:00	WAT
 Rule	Namibia	1994	2017	-	Sep	Sun>=1	2:00	0	CAT
@@ -1303,7 +1315,7 @@ Zone	Indian/Mahe	3:41:48 -	LMT	1906 Jun # Victoria
 # See Africa/Nairobi.
 
 # South Africa
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	SA	1942	1943	-	Sep	Sun>=15	2:00	1:00	-
 Rule	SA	1943	1944	-	Mar	Sun>=15	2:00	0	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
@@ -1336,7 +1348,7 @@ Link Africa/Johannesburg Africa/Mbabane    # Eswatini
 # Abdalla of NTC, archived at:
 # https://mm.icann.org/pipermail/tz/2017-October/025333.html
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Sudan	1970	only	-	May	 1	0:00	1:00	S
 Rule	Sudan	1970	1985	-	Oct	15	0:00	0	-
 Rule	Sudan	1971	only	-	Apr	30	0:00	1:00	S
@@ -1424,7 +1436,7 @@ Zone	Africa/Juba	2:06:28 -	LMT	1931
 # http://www.almadenahnews.com/newss/news.php?c=118&id=38036
 # http://www.worldtimezone.com/dst_news/dst_news_tunis02.html
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Tunisia	1939	only	-	Apr	15	23:00s	1:00	S
 Rule	Tunisia	1939	only	-	Nov	18	23:00s	0	-
 Rule	Tunisia	1940	only	-	Feb	25	23:00s	1:00	S
@@ -1451,9 +1463,7 @@ Rule	Tunisia	2005	only	-	Sep	30	 1:00s	0	-
 Rule	Tunisia	2006	2008	-	Mar	lastSun	 2:00s	1:00	S
 Rule	Tunisia	2006	2008	-	Oct	lastSun	 2:00s	0	-
 
-# Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's
-# more precise 0:09:21.
-# Shanks & Pottenger say the 1911 switch was on Mar 9; go with Howse's Mar 11.
+# See Europe/Paris for PMT-related transitions.
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Tunis	0:40:44 -	LMT	1881 May 12
 			0:09:21	-	PMT	1911 Mar 11 # Paris Mean Time

Modified: releng/11.4/contrib/tzdata/antarctica
==============================================================================
--- releng/11.4/contrib/tzdata/antarctica	Tue Dec  1 19:35:48 2020	(r368250)
+++ releng/11.4/contrib/tzdata/antarctica	Tue Dec  1 19:35:48 2020	(r368251)
@@ -70,15 +70,30 @@
 # Australian Antarctica Division informed us that Casey changed time
 # zone to UTC+11 in "the morning of 22nd October 2016".
 
+# From Steffen Thorsen (2020-10-02, as corrected):
+# Based on information we have received from the Australian Antarctic
+# Division, Casey station and Macquarie Island station will move to Tasmanian
+# daylight savings time on Sunday 4 October. This will take effect from 0001
+# hrs on Sunday 4 October 2020 and will mean Casey and Macquarie Island will
+# be on the same time zone as Hobart.  Some past dates too for this 3 hour
+# time change back and forth between UTC+8 and UTC+11 for Casey:
+# - 2018 Oct  7 4:00 - 2019 Mar 17 3:00 - 2019 Oct  4 3:00 - 2020 Mar  8 3:00
+# and now - 2020 Oct  4 0:01
+
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Antarctica/Casey	0	-	-00	1969
-			8:00	-	+08	2009 Oct 18  2:00
+Zone Antarctica/Casey	 0	-	-00	1969
+			 8:00	-	+08	2009 Oct 18  2:00
 			11:00	-	+11	2010 Mar  5  2:00
-			8:00	-	+08	2011 Oct 28  2:00
+			 8:00	-	+08	2011 Oct 28  2:00
 			11:00	-	+11	2012 Feb 21 17:00u
-			8:00	-	+08	2016 Oct 22
+			 8:00	-	+08	2016 Oct 22
 			11:00	-	+11	2018 Mar 11  4:00
-			8:00	-	+08
+			 8:00	-	+08	2018 Oct  7  4:00
+			11:00	-	+11	2019 Mar 17  3:00
+			 8:00	-	+08	2019 Oct  4  3:00
+			11:00	-	+11	2020 Mar  8  3:00
+			 8:00	-	+08	2020 Oct  4  0:01
+			11:00	-	+11
 Zone Antarctica/Davis	0	-	-00	1957 Jan 13
 			7:00	-	+07	1964 Nov
 			0	-	-00	1969 Feb
@@ -224,7 +239,7 @@ Zone Antarctica/Syowa	0	-	-00	1957 Jan 29
 # suggested by Bengt-Inge Larsson comment them out for now, and approximate
 # with only UTC and CEST.  Uncomment them when 2014b is more prevalent.
 #
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 #Rule	Troll	2005	max	-	Mar	 1	1:00u	1:00	+01
 Rule	Troll	2005	max	-	Mar	lastSun	1:00u	2:00	+02
 #Rule	Troll	2005	max	-	Oct	lastSun	1:00u	1:00	+01

Modified: releng/11.4/contrib/tzdata/asia
==============================================================================
--- releng/11.4/contrib/tzdata/asia	Tue Dec  1 19:35:48 2020	(r368250)
+++ releng/11.4/contrib/tzdata/asia	Tue Dec  1 19:35:48 2020	(r368251)
@@ -70,7 +70,7 @@
 ###############################################################################
 
 # These rules are stolen from the 'europe' file.
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	EUAsia	1981	max	-	Mar	lastSun	 1:00u	1:00	S
 Rule	EUAsia	1979	1995	-	Sep	lastSun	 1:00u	0	-
 Rule	EUAsia	1996	max	-	Oct	lastSun	 1:00u	0	-
@@ -114,7 +114,7 @@ Zone	Asia/Kabul	4:36:48 -	LMT	1890
 # or
 # (brief)
 # http://www.worldtimezone.com/dst_news/dst_news_armenia03.html
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule Armenia	2011	only	-	Mar	lastSun	 2:00s	1:00	-
 Rule Armenia	2011	only	-	Oct	lastSun	 2:00s	0	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
@@ -140,7 +140,7 @@ Zone	Asia/Yerevan	2:58:00 -	LMT	1924 May  2
 # http://vestnikkavkaza.net/news/Azerbaijani-Cabinet-of-Ministers-cancels-daylight-saving-time.html
 # http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Azer	1997	2015	-	Mar	lastSun	 4:00	1:00	-
 Rule	Azer	1997	2015	-	Oct	lastSun	 5:00	0	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
@@ -227,7 +227,7 @@ Zone	Asia/Baku	3:19:24 -	LMT	1924 May  2
 # http://www.thedailystar.net/newDesign/latest_news.php?nid=22817
 # http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Dhaka	2009	only	-	Jun	19	23:00	1:00	-
 Rule	Dhaka	2009	only	-	Dec	31	24:00	0	-
 
@@ -303,7 +303,7 @@ Zone	Asia/Yangon	6:24:47 -	LMT	1880        # or Rangoo
 # generally esteemed a success, it was announced early in 1920 that it would
 # not be repeated."
 #
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Shang	1919	only	-	Apr	12	24:00	1:00	D
 Rule	Shang	1919	only	-	Sep	30	24:00	0	S
 
@@ -399,7 +399,7 @@ Rule	Shang	1919	only	-	Sep	30	24:00	0	S
 # the Yangtze river delta area during that period of time although the scope
 # of such use will need to be investigated to determine.
 #
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Shang	1940	only	-	Jun	 1	 0:00	1:00	D
 Rule	Shang	1940	only	-	Oct	12	24:00	0	S
 Rule	Shang	1941	only	-	Mar	15	 0:00	1:00	D
@@ -462,7 +462,7 @@ Rule	Shang	1948	1949	-	Sep	30	24:00	0	S #plan
 # to begin on 17 April.
 # http://data.people.com.cn/pic/101p/1988/04/1988041201.jpg
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	PRC	1986	only	-	May	 4	 2:00	1:00	D
 Rule	PRC	1986	1991	-	Sep	Sun>=11	 2:00	0	S
 Rule	PRC	1987	1991	-	Apr	Sun>=11	 2:00	1:00	D
@@ -846,7 +846,7 @@ Zone	Asia/Urumqi	5:50:20	-	LMT	1928
 # or dates for the 1942 and 1945 transitions.
 # The Japanese occupation of Hong Kong began 1941-12-25.
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	HK	1946	only	-	Apr	21	0:00	1:00	S
 Rule	HK	1946	only	-	Dec	1	3:30s	0	-
 Rule	HK	1947	only	-	Apr	13	3:30s	1:00	S
@@ -973,7 +973,7 @@ Zone	Asia/Hong_Kong	7:36:42 -	LMT	1904 Oct 30  0:36:42
 # until 1945-09-21 at 01:00, overriding Shanks & Pottenger.
 # Likewise, use Yu-Cheng Chuang's data for DST in Taiwan.
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Taiwan	1946	only	-	May	15	0:00	1:00	D
 Rule	Taiwan	1946	only	-	Oct	1	0:00	0	S
 Rule	Taiwan	1947	only	-	Apr	15	0:00	1:00	D
@@ -1099,7 +1099,7 @@ Zone	Asia/Taipei	8:06:00 -	LMT	1896 Jan  1
 # The 1904 decree says that Macau changed from the meridian of
 # Fortaleza do Monte, presumably the basis for the 7:34:10 for LMT.
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Macau	1942	1943	-	Apr	30	23:00	1:00	-
 Rule	Macau	1942	only	-	Nov	17	23:00	0	-
 Rule	Macau	1943	only	-	Sep	30	23:00	0	S
@@ -1157,7 +1157,7 @@ Zone	Asia/Macau	7:34:10 -	LMT	1904 Oct 30
 # Cyprus to remain united in time.  Cyprus Mail 2017-10-17.
 # https://cyprus-mail.com/2017/10/17/cyprus-remain-united-time/
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Cyprus	1975	only	-	Apr	13	0:00	1:00	S
 Rule	Cyprus	1975	only	-	Oct	12	0:00	0	-
 Rule	Cyprus	1976	only	-	May	15	0:00	1:00	S
@@ -1534,7 +1534,7 @@ Zone Asia/Jayapura	9:22:48 -	LMT	1932 Nov
 # be changed back to its previous state on the 24 hours of the
 # thirtieth day of Shahrivar.
 #
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Iran	1978	1980	-	Mar	20	24:00	1:00	-
 Rule	Iran	1978	only	-	Oct	20	24:00	0	-
 Rule	Iran	1979	only	-	Sep	18	24:00	0	-
@@ -1676,7 +1676,7 @@ Zone	Asia/Tehran	3:25:44	-	LMT	1916
 # We have published a short article in English about the change:
 # https://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Iraq	1982	only	-	May	1	0:00	1:00	-
 Rule	Iraq	1982	1984	-	Oct	1	0:00	0	-
 Rule	Iraq	1983	only	-	Mar	31	0:00	1:00	-
@@ -1699,6 +1699,10 @@ Zone	Asia/Baghdad	2:57:40	-	LMT	1890
 
 # Israel
 
+# For more info about the motivation for DST in Israel, see:
+# Barak Y. Israel's Daylight Saving Time controversy. Israel Affairs.
+# 2020-08-11. https://doi.org/10.1080/13537121.2020.1806564
+
 # From Ephraim Silverberg (2001-01-11):
 #
 # I coined "IST/IDT" circa 1988.  Until then there were three
@@ -1720,7 +1724,7 @@ Zone	Asia/Baghdad	2:57:40	-	LMT	1890
 # family is from India).
 
 # From Shanks & Pottenger:
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Zion	1940	only	-	Jun	 1	0:00	1:00	D
 Rule	Zion	1942	1944	-	Nov	 1	0:00	0	S
 Rule	Zion	1943	only	-	Apr	 1	2:00	1:00	D
@@ -1812,7 +1816,7 @@ Rule	Zion	1988	only	-	Sep	 4	0:00	0	S
 # (except in 2002) is three nights before Yom Kippur [Day of Atonement]
 # (the eve of the 7th of Tishrei in the lunar Hebrew calendar).
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Zion	1989	only	-	Apr	30	0:00	1:00	D
 Rule	Zion	1989	only	-	Sep	 3	0:00	0	S
 Rule	Zion	1990	only	-	Mar	25	0:00	1:00	D
@@ -1828,7 +1832,7 @@ Rule	Zion	1993	only	-	Sep	 5	0:00	0	S
 # Ministry of Interior, Jerusalem, Israel.  The spokeswoman can be reached by
 # calling the office directly at 972-2-6701447 or 972-2-6701448.
 
-# Rule	NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Zion	1994	only	-	Apr	 1	0:00	1:00	D
 Rule	Zion	1994	only	-	Aug	28	0:00	0	S
 Rule	Zion	1995	only	-	Mar	31	0:00	1:00	D
@@ -1848,7 +1852,7 @@ Rule	Zion	1995	only	-	Sep	 3	0:00	0	S
 #
 #       where YYYY is the relevant year.
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Zion	1996	only	-	Mar	15	0:00	1:00	D
 Rule	Zion	1996	only	-	Sep	16	0:00	0	S
 Rule	Zion	1997	only	-	Mar	21	0:00	1:00	D
@@ -1871,7 +1875,7 @@ Rule	Zion	1999	only	-	Sep	 3	2:00	0	S
 #
 #	ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Zion	2000	only	-	Apr	14	2:00	1:00	D
 Rule	Zion	2000	only	-	Oct	 6	1:00	0	S
 Rule	Zion	2001	only	-	Apr	 9	1:00	1:00	D
@@ -1893,7 +1897,7 @@ Rule	Zion	2004	only	-	Sep	22	1:00	0	S
 #
 #	ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+beyond.ps
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Zion	2005	2012	-	Apr	Fri<=1	2:00	1:00	D
 Rule	Zion	2005	only	-	Oct	 9	2:00	0	S
 Rule	Zion	2006	only	-	Oct	 1	2:00	0	S
@@ -1913,7 +1917,7 @@ Rule	Zion	2012	only	-	Sep	23	2:00	0	S
 # As of 2013, DST starts at 02:00 on the Friday before the last Sunday
 # in March.  DST ends at 02:00 on the last Sunday of October.
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Zion	2013	max	-	Mar	Fri>=23	2:00	1:00	D
 Rule	Zion	2013	max	-	Oct	lastSun	2:00	0	S
 
@@ -2013,7 +2017,7 @@ Zone	Asia/Jerusalem	2:20:54 -	LMT	1880
 # do in any POSIX or C platform.  The "25:00" assumes zic from 2007 or later,
 # which should be safe now.
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Japan	1948	only	-	May	Sat>=1	24:00	1:00	D
 Rule	Japan	1948	1951	-	Sep	Sat>=8	25:00	0	S
 Rule	Japan	1949	only	-	Apr	Sat>=1	24:00	1:00	D
@@ -2090,7 +2094,7 @@ Zone	Asia/Tokyo	9:18:59	-	LMT	1887 Dec 31 15:00u
 # From Paul Eggert (2013-12-11):
 # As Steffen suggested, consider the past 21-month experiment to be DST.
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Jordan	1973	only	-	Jun	6	0:00	1:00	S
 Rule	Jordan	1973	1975	-	Oct	1	0:00	0	-
 Rule	Jordan	1974	1977	-	May	1	0:00	1:00	S
@@ -2416,7 +2420,7 @@ Zone	Asia/Oral	3:25:24	-	LMT	1924 May  2 # or Ural'sk
 # Our government cancels daylight saving time 6th of August 2005.
 # From 2005-08-12 our GMT-offset is +6, w/o any daylight saving.
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Kyrgyz	1992	1996	-	Apr	Sun>=7	0:00s	1:00	-
 Rule	Kyrgyz	1992	1996	-	Sep	lastSun	0:00	0	-
 Rule	Kyrgyz	1997	2005	-	Mar	lastSun	2:30	1:00	-
@@ -2472,7 +2476,7 @@ Zone	Asia/Bishkek	4:58:24 -	LMT	1924 May  2
 # follow and continued to use GMT+9:00 for interoperability.
 
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	ROK	1948	only	-	Jun	 1	 0:00	1:00	D
 Rule	ROK	1948	only	-	Sep	12	24:00	0	S
 Rule	ROK	1949	only	-	Apr	 3	 0:00	1:00	D
@@ -2560,7 +2564,7 @@ Zone	Asia/Pyongyang	8:23:00 -	LMT	1908 Apr  1
 
 
 # Lebanon
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Lebanon	1920	only	-	Mar	28	0:00	1:00	S
 Rule	Lebanon	1920	only	-	Oct	25	0:00	0	-
 Rule	Lebanon	1921	only	-	Apr	3	0:00	1:00	S
@@ -2590,7 +2594,7 @@ Zone	Asia/Beirut	2:22:00 -	LMT	1880
 			2:00	Lebanon	EE%sT
 
 # Malaysia
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	NBorneo	1935	1941	-	Sep	14	0:00	0:20	-
 Rule	NBorneo	1935	1941	-	Dec	14	0:00	0	-
 #
@@ -2735,7 +2739,7 @@ Zone	Indian/Maldives	4:54:00 -	LMT	1880 # Malé
 # September daylight saving time ends.  Source:
 # http://zasag.mn/news/view/8969
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Mongol	1983	1984	-	Apr	1	0:00	1:00	-
 Rule	Mongol	1983	only	-	Oct	1	0:00	0	-
 # Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00,
@@ -2923,7 +2927,7 @@ Zone	Asia/Kathmandu	5:41:16 -	LMT	1920
 # "People laud PM's announcement to end DST"
 # http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=99374&Itemid=2
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule Pakistan	2002	only	-	Apr	Sun>=2	0:00	1:00	S
 Rule Pakistan	2002	only	-	Oct	Sun>=2	0:00	0	-
 Rule Pakistan	2008	only	-	Jun	1	0:00	1:00	S
@@ -3217,15 +3221,42 @@ Zone	Asia/Karachi	4:28:12 -	LMT	1907
 
 # From Sharef Mustafa (2019-10-18):
 # Palestine summer time will end on midnight Oct 26th 2019 ...
-# http://www.palestinecabinet.gov.ps/website/ar/ViewDetails?ID=43948
 #
-# From Paul Eggert (2019-04-10):
-# For now, guess spring-ahead transitions are March's last Friday at 00:00.
+# From Steffen Thorsen (2020-10-20):
+# Some sources such as these say, and display on clocks, that DST ended at
+# midnight last year...
+# https://www.amad.ps/ar/post/320006
 #
-# From Tim Parenti (2016-10-19):
-# Predict fall transitions on October's last Saturday at 01:00 from now on.
+# From Tim Parenti (2020-10-20):
+# The report of the Palestinian Cabinet meeting of 2019-10-14 confirms
+# a decision on (translated): "The start of the winter time in Palestine, by
+# delaying the clock by sixty minutes, starting from midnight on Friday /
+# Saturday corresponding to 26/10/2019."
+# http://www.palestinecabinet.gov.ps/portal/meeting/details/43948
 
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# From Sharef Mustafa (2020-10-20):
+# As per the palestinian cabinet announcement yesterday , the day light saving
+# shall [end] on Oct 24th 2020 at 01:00AM by delaying the clock by 60 minutes.
+# http://www.palestinecabinet.gov.ps/portal/Meeting/Details/51584
+
+# From Tim Parenti (2020-10-20):
+# Predict future fall transitions at 01:00 on the Saturday preceding October's
+# last Sunday (i.e., Sat>=24).  This is consistent with our predictions since
+# 2016, although the time of the change differed slightly in 2019.
+
+# From Pierre Cashon (2020-10-20):
+# The summer time this year started on March 28 at 00:00.
+# https://wafa.ps/ar_page.aspx?id=GveQNZa872839351758aGveQNZ
+# http://www.palestinecabinet.gov.ps/portal/meeting/details/50284
+# The winter time in 2015 started on October 23 at 01:00.
+# https://wafa.ps/ar_page.aspx?id=CgpCdYa670694628582aCgpCdY
+# http://www.palestinecabinet.gov.ps/portal/meeting/details/27583
+#
+# From Paul Eggert (2019-04-10):
+# For now, guess spring-ahead transitions are at 00:00 on the Saturday
+# preceding March's last Sunday (i.e., Sat>=24).
+
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule EgyptAsia	1957	only	-	May	10	0:00	1:00	S
 Rule EgyptAsia	1957	1958	-	Oct	 1	0:00	0	-

*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***


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