from: http://www.schaffter.com/cpu/tz.html
Timezones
Relative Common Alternative Daylight
GMT abbreviation Verbal name abbreviation Savings
/ pt char (s) Time (DST)
-12 (12) IDLW / C International NZST
(west) Date Line West
-11 (13) NT / D Nome Time
(west)
-10 (14) Alaska-Hawaii CAT (Central HDT (Hawaii
(west) AHST / E Standard Time Alaska Time) Daylight
HST (Hawaii Time)
Standard
Time)
-09 (15) Yukon Standard AKST (Alaska YDT (Yukon
(west) YST / F Time Standard Daylight
Time) Time)
-08 (16) Pacific Standard PDT (Pacific
(west) PST / G Time Daylight
* or empty Zone assumes G * Time)
-07 (17) Mountain Standard MDT (Mountain
(west) MST / H Time Daylight
Time)
-06 (18) Central Standard CDT (Central
(west) CST / I Time Daylight
Time)
-05 (19) Eastern Standard EDT (Eastern
(west) EST / J Time Daylight
Time)
-04 (20) Atlantic Standard ADT (Atlantic
(west) AST / K Time Daylight
Time)
-03 (21) GST / L Greenland
(west) Standard Time
-02 (22) AT / M Azores Time
(west)
-01 (23) WAT / N West Africa Time
(west)
00 GMT / 0 Greenwich Mean UT (Universal BST (British
Time Time) Summer Time)
UTC
(Coordinated
Universal
Time)
WET (Western
European
Time)
01 CET / 1 Central European FWT (French MEST (Middle
(east) Time Winter Time) European
MET (Middle Summer Time)
European MESZ (Middle
Time) European
MEWT (Middle Summer Time)
European SST (Swedish
Winter Time) Summer Time)
SWT (Swedish FST (French
Winter Time) Summer Time)
02 EET / 2 Eastern European
(east) Time and
USSR Zone 1
03 BT / 3 Baghdad Time and
(east) USSR Zone 2
04 ZP4 / 4 USSR Zone 3
(east)
05 ZP5 / 5 USSR Zone 4
(east)
06 ZP6 / 6 USSR Zone 5
(east)
07 ZP7 / 7 USSR Zone 6
(east)
08 WAST / 8 West Australian CCT (China WADT (West
(east) Standard Time and Coast Time) Australian
USSR Zone 7 Daylight
Time)
09 JST / 9 Japan Standard
(east) Time and
USSR Zone 8
09.5 ACT / 9 Australian ACST
(east) Central Time
10 EAST / A East Australian GST (Guam EADT (East
(east) Standard Time and Standard Australian
USSR Zone 9 Time) Daylight
Time)
11 B
(east)
12 IDLE / C International NZST (New NZDT (New
(east) Date Line East Zealand Zealand
Standard Daylight
Time) Time)
NZT (New
Zealand Time)