Needed to select time zone with a reconizable region for each unique offset
- Daylight savings time means that unique names will shift, changing the names
- There are actually ~38 unique timezones depending on daylight savings time.
- London which is known for GMT actually observers daylight savings time.
| # | Offset | Time Zone | Region | City | Skips DST |
|---|---|---|---|---|---|
| 1 | +09:00 | Asia/Chita | Asia | Chita | - |
| 2 | +09:00 | Asia/Dili | Asia | Dili | - |
| 3 | +09:00 | Asia/Jayapura | Asia | Jayapura | - |
| 4 | +09:00 | Asia/Khandyga | Asia | Khandyga | - |
| 5 | +09:00 | Asia/Pyongyang | Asia | Pyongyang | - |
| 6 | +09:00 | Asia/Seoul | Asia | Seoul | - |
| 7 | +09:00 | Asia/Tokyo | Asia | Tokyo | - |
| 8 | +09:00 | Asia/Yakutsk | Asia | Yakutsk | - |
| 9 | +09:00 | Etc/GMT-9 | Etc | GMT-9 | Yes |
| 10 | +09:00 | Japan | Japan | - | |
| 11 | +09:00 | Pacific/Palau | Pacific | Palau | - |
| 12 | +09:00 | ROK | ROK | - | |
| 13 | +09:00 | ical4j~1196296f-5550-4388-815f-92f4f8220758 | ical4j~1196296f-5550-4388-815f-92f4f8220758 | - | |
| 14 | +09:00 | ical4j~14097636-f7f0-483b-bbed-225354795bdd | ical4j~14097636-f7f0-483b-bbed-225354795bdd | - | |
| 15 | +09:00 | ical4j~14154e43-6700-44e3-991e-113973df6287 | ical4j~14154e43-6700-44e3-991e-113973df6287 | Yes | |
| 16 | +09:00 | ical4j~1d48239b-bbca-4c82-8b99-b3e4c2c84e65 | ical4j~1d48239b-bbca-4c82-8b99-b3e4c2c84e65 | - | |
| 17 | +09:00 | ical4j~3065a848-1458-4ee2-82a4-6cfa297652de | ical4j~3065a848-1458-4ee2-82a4-6cfa297652de | - | |
| 18 | +09:00 | ical4j~74fb91d7-b7b1-43ad-a68a-aa427f59bd3e | ical4j~74fb91d7-b7b1-43ad-a68a-aa427f59bd3e | - | |
| 19 | +09:00 | ical4j~afeb3424-70f6-4625-a95c-7c9506fabf3a | ical4j~afeb3424-70f6-4625-a95c-7c9506fabf3a | - | |
| 20 | +09:00 | ical4j~bdc6fc9d-8526-48fe-b2e0-8afa68a913be | ical4j~bdc6fc9d-8526-48fe-b2e0-8afa68a913be | - | |
| 21 | +09:00 | ical4j~c9f4f8d8-ce8a-4a9e-8881-231f96ae0aa2 | ical4j~c9f4f8d8-ce8a-4a9e-8881-231f96ae0aa2 | - | |
| 22 | +09:00 | ical4j~cc483f49-ba24-41dd-903f-81c7e7ae9670 | ical4j~cc483f49-ba24-41dd-903f-81c7e7ae9670 | - | |
| 23 | +09:00 | ical4j~dbdbac3b-cc8e-4975-ab9a-4b9262a46af3 | ical4j~dbdbac3b-cc8e-4975-ab9a-4b9262a46af3 | - | |
| 24 | +09:00 | ical4j~e073d14b-e4e3-46d6-8e60-14bda96aeab4 | ical4j~e073d14b-e4e3-46d6-8e60-14bda96aeab4 | - | |
| 25 | +09:00 | ical4j~ea446eb7-4480-44ed-a058-12460285cb1c | ical4j~ea446eb7-4480-44ed-a058-12460285cb1c | Yes | |
| 26 | +09:00 | ical4j~f1a65b31-356f-46aa-9b17-2873a7434098 | ical4j~f1a65b31-356f-46aa-9b17-2873a7434098 | - |
| # | Offset | Time Zone | Region | City | Skips DST |
|---|---|---|---|---|---|
| 1 | -11:00 | Pacific/Pago_Pago | Pacific | Pago Pago | - |
| 2 | -10:00 | Pacific/Honolulu | Pacific | Honolulu | - |
| 3 | -09:30 | Pacific/Marquesas | Pacific | Marquesas | - |
| 4 | -09:00 | America/Adak | America | Adak | - |
| 5 | -08:00 | America/Anchorage | America | Anchorage | - |
| 6 | -07:00 | America/Los_Angeles | America | Los Angeles | - |
| 7 | -06:00 | America/Denver | America | Denver | - |
| 8 | -05:00 | America/Chicago | America | Chicago | - |
| 9 | -04:00 | America/New_York | America | New York | - |
| 10 | -03:00 | America/Halifax | America | Halifax | - |
| 11 | -02:30 | America/St_Johns | America | St Johns | - |
| 12 | -02:00 | Atlantic/South_Georgia | Atlantic | South Georgia | - |
| 13 | -01:00 | Atlantic/Cape_Verde | Atlantic | Cape Verde | - |
| 14 | +00:00 | Greenwich | Greenwich | Yes | |
| 15 | +01:00 | Europe/London | Europe | London | - |
| 16 | +02:00 | Europe/Gibraltar | Europe | Gibraltar | - |
| 17 | +03:00 | Europe/Moscow | Europe | Moscow | - |
| 18 | +03:30 | Asia/Tehran | Asia | Tehran | - |
| 19 | +04:00 | Asia/Dubai | Asia | Dubai | - |
| 20 | +04:30 | Asia/Kabul | Asia | Kabul | - |
| 21 | +05:00 | Asia/Karachi | Asia | Karachi | - |
| 22 | +05:30 | Asia/Kolkata | Asia | Kolkata | - |
| 23 | +05:45 | Asia/Kathmandu | Asia | Kathmandu | - |
| 24 | +06:00 | Asia/Dhaka | Asia | Dhaka | - |
| 25 | +07:00 | Asia/Bangkok | Asia | Bangkok | - |
| 26 | +08:00 | Australia/Perth | Australia | Perth | - |
| 27 | +09:00 | Asia/Tokyo | Asia | Tokyo | - |
| 28 | +09:30 | Australia/Darwin | Australia | Darwin | - |
| 29 | +10:00 | Australia/Sydney | Australia | Sydney | - |
| 30 | +10:30 | Australia/Lord_Howe | Australia | Lord Howe | - |
| 31 | +11:00 | Pacific/Guadalcanal | Pacific | Guadalcanal | - |
| 32 | +12:00 | Pacific/Auckland | Pacific | Auckland | - |
| 33 | +12:45 | Pacific/Chatham | Pacific | Chatham | - |