on this version the central standart time is incorrect , for the united states and mexico you have to use belize , in that wy you can have -0600 gmt Oscar Maximo Lopez S Equipo Compumax Proyectos y Compras Laredo Tamps (867) 710-78-10,724-15-28, 724-15-73 Laredo Tx (956) 729-83-72, 729-92-39