Time zones and abbreviations
People type abbreviations the way they type city names, so each one gets a page with a live clock. The ambiguous ones (IST means three different things 4½ hours apart, CST means three things 14 hours apart) say so at the top instead of quietly picking one.
Abbreviations
| Code | Name | Now | Offset | |
|---|---|---|---|---|
| UTC | Coordinated Universal Time | 1:20 pm | UTC+0 | |
| GMT | Greenwich Mean Time | 1:20 pm | UTC+0 | ambiguous |
| EST | Eastern Standard Time | 9:20 am | UTC-4 | ambiguous |
| EDT | Eastern Daylight Time | 9:20 am | UTC-4 | |
| CST | Central Standard Time | 8:20 am | UTC-5 | ambiguous |
| CDT | Central Daylight Time | 8:20 am | UTC-5 | |
| MST | Mountain Standard Time | 7:20 am | UTC-6 | ambiguous |
| MDT | Mountain Daylight Time | 7:20 am | UTC-6 | |
| PST | Pacific Standard Time | 6:20 am | UTC-7 | ambiguous |
| PDT | Pacific Daylight Time | 6:20 am | UTC-7 | |
| AKST | Alaska Standard Time | 5:20 am | UTC-8 | |
| HST | Hawaii-Aleutian Standard Time | 3:20 am | UTC-10 | |
| AST | Atlantic / Arabia Standard Time | 10:20 am | UTC-3 | ambiguous |
| NST | Newfoundland Standard Time | 10:50 am | UTC-2:30 | |
| BST | British Summer Time | 2:20 pm | UTC+1 | ambiguous |
| WET | Western European Time | 2:20 pm | UTC+1 | |
| CET | Central European Time | 3:20 pm | UTC+2 | |
| CEST | Central European Summer Time | 3:20 pm | UTC+2 | |
| EET | Eastern European Time | 4:20 pm | UTC+3 | |
| EEST | Eastern European Summer Time | 4:20 pm | UTC+3 | |
| MSK | Moscow Time | 4:20 pm | UTC+3 | |
| TRT | Turkey Time | 4:20 pm | UTC+3 | |
| IRST | Iran Standard Time | 4:50 pm | UTC+3:30 | |
| GST | Gulf Standard Time | 5:20 pm | UTC+4 | |
| PKT | Pakistan Standard Time | 6:20 pm | UTC+5 | |
| IST | India / Irish / Israel Standard Time | 6:50 pm | UTC+5:30 | ambiguous |
| NPT | Nepal Time | 7:05 pm | UTC+5:45 | |
| ICT | Indochina Time | 8:20 pm | UTC+7 | |
| WIB | Western Indonesian Time | 8:20 pm | UTC+7 | |
| SGT | Singapore Time | 9:20 pm | UTC+8 | |
| MYT | Malaysia Time | 9:20 pm | UTC+8 | |
| HKT | Hong Kong Time | 9:20 pm | UTC+8 | |
| PHT | Philippine Time | 9:20 pm | UTC+8 | |
| JST | Japan Standard Time | 10:20 pm | UTC+9 | |
| KST | Korea Standard Time | 10:20 pm | UTC+9 | |
| AWST | Australian Western Standard Time | 9:20 pm | UTC+8 | |
| ACST | Australian Central Standard Time | 11:50 pm | UTC+10:30 | |
| AEST | Australian Eastern Standard Time | 12:20 am | UTC+11 | |
| AEDT | Australian Eastern Daylight Time | 12:20 am | UTC+11 | |
| NZST | New Zealand Standard Time | 2:20 am | UTC+13 | |
| NZDT | New Zealand Daylight Time | 2:20 am | UTC+13 | |
| CHST | Chamorro Standard Time | 11:20 pm | UTC+10 | |
| SAST | South Africa Standard Time | 3:20 pm | UTC+2 | |
| EAT | East Africa Time | 4:20 pm | UTC+3 | |
| CAT | Central Africa Time | 3:20 pm | UTC+2 | |
| WAT | West Africa Time | 2:20 pm | UTC+1 | |
| BRT | Brasília Time | 10:20 am | UTC-3 | |
| ART | Argentina Time | 10:20 am | UTC-3 | |
| CLT | Chile Standard Time | 10:20 am | UTC-3 | |
| COT | Colombia Time | 8:20 am | UTC-5 | |
| PET | Peru Time | 8:20 am | UTC-5 | |
| VET | Venezuela Time | 9:20 am | UTC-4 |
GMT and UTC offsets
A fixed offset never shifts for daylight saving, but the places sitting at it change twice a year, so each page recomputes its list live.
United States, state by state
Including the awkward ones: Arizona does not change its clocks, Indiana only started in 2006, and five states are cut in half by a zone boundary.
AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyoming
Clocks that ignore time zones entirely
Two attempts at a day without them: one from 1793, one from 1998. Both divide the day by a thousand and both are live here.