A - Alpha Time Zone 
ACDT - Australian Central Daylight Tim… 
ACIT - Ashmore and Cartier Islands Tim… 
ACST - Australian Central Standard Tim… 
ACT - Acre Time 
ACWST - Australian Central Western Sta… 
ADT - Arabia Daylight Time 
ADT - Atlantic Daylight Time 
AEDT - Australian Eastern Daylight Tim… 
AEST - Australian Eastern Standard Tim… 
AFT - Afghanistan Time 
AKDT - Alaska Daylight Time 
AKST - Alaska Standard Time 
ANAST - Anadyr†Summer Time 
ANAT - Anadyr†Time 
APO - Apo Island Time 
ARDT - Argentina Daylight Time 
ART - Argentina Time 
AST - Arabia Standard Time 
AST - Arabic Standard Time 
AST - Atlantic Standard Time 
AWDT - Australian Western Daylight Tim… 
AWST - Australian Western Standard Tim… 
AZODT - Azores Daylight Time 
AZOST - Azores Standard Time 
AZST - Azerbaijan Summer Time 
AZT - Azerbaijan Time 
B - Bravo Time Zone 
BEST - Brazil Eastern Standard Time 
BIOT - British Indian Ocean Time