Time Zone Constants

Code	Time Zone
GMT	Greenwich Mean Time
NST	Newfoundland Standard Time
AST	Atlantic Standard Time
ADT	Atlantic Daylight Time
BST	Bering Standard Time
BDT	Bering Daylight Time
CST	Central Standard Time
CDT	Central Daylight Time
EST	Eastern Standard Time
EDT	Eastern Daylight Time
MST	Mountain Standard Time
MDT	Mountain Daylight Time
PST	Pacific Standard Time
PDT	Pacific Daylight Time
YST	Yukon Standard Time
YDT	Yukon Daylight Time
HST	Hawaii-Alaska Standard Time
HDT	Hawaii-Alaska Daylight Time