Time Zone Changes in 1977
In 1977, 317 time zone transitions occurred across 161 regions worldwide. Clocks moved forward in 161 transitions (gaps) and turned back in 154 transitions (overlaps).
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Transitions in 1977 (317)
| Zone | Instant (UTC) | Local Wall Time | Shift | Abbreviation | DST | Effect |
|---|---|---|---|---|---|---|
| America/Asuncion | 1977-03-01T03:00:00Z | 1977-02-28 23:00:00 | -03:00 → -04:00 | -04 | No | overlap |
| Antarctica/McMurdo | 1977-03-05T14:00:00Z | 1977-03-06 02:00:00 | +13:00 → +12:00 | NZST | No | overlap |
| Antarctica/South_Pole | 1977-03-05T14:00:00Z | 1977-03-06 02:00:00 | +13:00 → +12:00 | NZST | No | overlap |
| NZ | 1977-03-05T14:00:00Z | 1977-03-06 02:00:00 | +13:00 → +12:00 | NZST | No | overlap |
| NZ-CHAT | 1977-03-05T14:00:00Z | 1977-03-06 02:45:00 | +13:45 → +12:45 | +1245 | No | overlap |
| Pacific/Auckland | 1977-03-05T14:00:00Z | 1977-03-06 02:00:00 | +13:00 → +12:00 | NZST | No | overlap |
| Pacific/Chatham | 1977-03-05T14:00:00Z | 1977-03-06 02:45:00 | +13:45 → +12:45 | +1245 | No | overlap |
| Antarctica/Macquarie | 1977-03-05T16:00:00Z | 1977-03-06 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/ACT | 1977-03-05T16:00:00Z | 1977-03-06 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/Canberra | 1977-03-05T16:00:00Z | 1977-03-06 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/Currie | 1977-03-05T16:00:00Z | 1977-03-06 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/Hobart | 1977-03-05T16:00:00Z | 1977-03-06 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/Melbourne | 1977-03-05T16:00:00Z | 1977-03-06 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/NSW | 1977-03-05T16:00:00Z | 1977-03-06 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/Sydney | 1977-03-05T16:00:00Z | 1977-03-06 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/Tasmania | 1977-03-05T16:00:00Z | 1977-03-06 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/Victoria | 1977-03-05T16:00:00Z | 1977-03-06 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/Adelaide | 1977-03-05T16:30:00Z | 1977-03-06 02:00:00 | +10:30 → +09:30 | ACST | No | overlap |
| Australia/Broken_Hill | 1977-03-05T16:30:00Z | 1977-03-06 02:00:00 | +10:30 → +09:30 | ACST | No | overlap |
| Australia/South | 1977-03-05T16:30:00Z | 1977-03-06 02:00:00 | +10:30 → +09:30 | ACST | No | overlap |
| Australia/Yancowinna | 1977-03-05T16:30:00Z | 1977-03-06 02:00:00 | +10:30 → +09:30 | ACST | No | overlap |
| America/Montevideo | 1977-03-06T02:00:00Z | 1977-03-05 23:00:00 | -02:00 → -03:00 | -03 | No | overlap |
| America/Coyhaique | 1977-03-13T03:00:00Z | 1977-03-12 23:00:00 | -03:00 → -04:00 | -04 | No | overlap |
| America/Punta_Arenas | 1977-03-13T03:00:00Z | 1977-03-12 23:00:00 | -03:00 → -04:00 | -04 | No | overlap |
| America/Santiago | 1977-03-13T03:00:00Z | 1977-03-12 23:00:00 | -03:00 → -04:00 | -04 | No | overlap |
| Chile/Continental | 1977-03-13T03:00:00Z | 1977-03-12 23:00:00 | -03:00 → -04:00 | -04 | No | overlap |
| Chile/EasterIsland | 1977-03-13T03:00:00Z | 1977-03-12 20:00:00 | -06:00 → -07:00 | -07 | No | overlap |
| Pacific/Easter | 1977-03-13T03:00:00Z | 1977-03-12 20:00:00 | -06:00 → -07:00 | -07 | No | overlap |
| Eire | 1977-03-20T02:00:00Z | 1977-03-20 03:00:00 | +00:00 → +01:00 | IST | No | gap |
| Europe/Belfast | 1977-03-20T02:00:00Z | 1977-03-20 03:00:00 | +00:00 → +01:00 | BST | Yes | gap |
| Europe/Dublin | 1977-03-20T02:00:00Z | 1977-03-20 03:00:00 | +00:00 → +01:00 | IST | No | gap |
| Europe/Guernsey | 1977-03-20T02:00:00Z | 1977-03-20 03:00:00 | +00:00 → +01:00 | BST | Yes | gap |
| Europe/Isle_of_Man | 1977-03-20T02:00:00Z | 1977-03-20 03:00:00 | +00:00 → +01:00 | BST | Yes | gap |
| Europe/Jersey | 1977-03-20T02:00:00Z | 1977-03-20 03:00:00 | +00:00 → +01:00 | BST | Yes | gap |
| Europe/London | 1977-03-20T02:00:00Z | 1977-03-20 03:00:00 | +00:00 → +01:00 | BST | Yes | gap |
| GB | 1977-03-20T02:00:00Z | 1977-03-20 03:00:00 | +00:00 → +01:00 | BST | Yes | gap |
| GB-Eire | 1977-03-20T02:00:00Z | 1977-03-20 03:00:00 | +00:00 → +01:00 | BST | Yes | gap |
| Asia/Tehran | 1977-03-21T19:30:00Z | 1977-03-22 00:00:00 | +03:30 → +04:30 | +0430 | Yes | gap |
| Iran | 1977-03-21T19:30:00Z | 1977-03-22 00:00:00 | +03:30 → +04:30 | +0430 | Yes | gap |
| Europe/Lisbon | 1977-03-27T00:00:00Z | 1977-03-27 01:00:00 | +00:00 → +01:00 | WEST | Yes | gap |
| Portugal | 1977-03-27T00:00:00Z | 1977-03-27 01:00:00 | +00:00 → +01:00 | WEST | Yes | gap |
| WET | 1977-03-27T00:00:00Z | 1977-03-27 01:00:00 | +00:00 → +01:00 | WEST | Yes | gap |
| Asia/Manila | 1977-03-27T16:00:00Z | 1977-03-28 01:00:00 | +08:00 → +09:00 | PDT | Yes | gap |
| Asia/Famagusta | 1977-04-02T22:00:00Z | 1977-04-03 01:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Asia/Nicosia | 1977-04-02T22:00:00Z | 1977-04-03 01:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Europe/Madrid | 1977-04-02T22:00:00Z | 1977-04-03 00:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/Nicosia | 1977-04-02T22:00:00Z | 1977-04-03 01:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Asia/Istanbul | 1977-04-03T00:00:00Z | 1977-04-03 03:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| EET | 1977-04-03T00:00:00Z | 1977-04-03 03:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Europe/Athens | 1977-04-03T00:00:00Z | 1977-04-03 03:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Europe/Istanbul | 1977-04-03T00:00:00Z | 1977-04-03 03:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Europe/Warsaw | 1977-04-03T00:00:00Z | 1977-04-03 02:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Poland | 1977-04-03T00:00:00Z | 1977-04-03 02:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Turkey | 1977-04-03T00:00:00Z | 1977-04-03 03:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| CET | 1977-04-03T01:00:00Z | 1977-04-03 03:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/Amsterdam | 1977-04-03T01:00:00Z | 1977-04-03 03:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/Brussels | 1977-04-03T01:00:00Z | 1977-04-03 03:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/Luxembourg | 1977-04-03T01:00:00Z | 1977-04-03 03:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/Monaco | 1977-04-03T01:00:00Z | 1977-04-03 03:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/Paris | 1977-04-03T01:00:00Z | 1977-04-03 03:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| MET | 1977-04-03T01:00:00Z | 1977-04-03 03:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/Malta | 1977-04-17T01:00:00Z | 1977-04-17 03:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Pacific/Guam | 1977-04-23T16:00:00Z | 1977-04-24 03:00:00 | +10:00 → +11:00 | GDT | Yes | gap |
| Pacific/Saipan | 1977-04-23T16:00:00Z | 1977-04-24 03:00:00 | +10:00 → +11:00 | GDT | Yes | gap |
| Africa/Juba | 1977-04-23T22:00:00Z | 1977-04-24 01:00:00 | +02:00 → +03:00 | CAST | Yes | gap |
| Africa/Khartoum | 1977-04-23T22:00:00Z | 1977-04-24 01:00:00 | +02:00 → +03:00 | CAST | Yes | gap |
| America/Havana | 1977-04-24T05:00:00Z | 1977-04-24 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
| Cuba | 1977-04-24T05:00:00Z | 1977-04-24 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
| America/St_Johns | 1977-04-24T05:30:00Z | 1977-04-24 03:00:00 | -03:30 → -02:30 | NDT | Yes | gap |
| Canada/Newfoundland | 1977-04-24T05:30:00Z | 1977-04-24 03:00:00 | -03:30 → -02:30 | NDT | Yes | gap |
| America/Glace_Bay | 1977-04-24T06:00:00Z | 1977-04-24 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
| America/Goose_Bay | 1977-04-24T06:00:00Z | 1977-04-24 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
| America/Halifax | 1977-04-24T06:00:00Z | 1977-04-24 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
| America/Moncton | 1977-04-24T06:00:00Z | 1977-04-24 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
| Atlantic/Bermuda | 1977-04-24T06:00:00Z | 1977-04-24 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
| Canada/Atlantic | 1977-04-24T06:00:00Z | 1977-04-24 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
| America/Detroit | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Iqaluit | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Jamaica | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Kentucky/Louisville | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Louisville | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Montreal | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Nassau | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/New_York | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Nipigon | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Pangnirtung | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Thunder_Bay | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Toronto | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| Canada/Eastern | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| EST5EDT | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| Jamaica | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| US/Eastern | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| US/Michigan | 1977-04-24T07:00:00Z | 1977-04-24 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Chicago | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Indiana/Knox | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Indiana/Petersburg | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Kentucky/Monticello | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Knox_IN | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Menominee | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Rainy_River | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Rankin_Inlet | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Resolute | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Winnipeg | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| CST6CDT | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| Canada/Central | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| US/Central | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| US/Indiana-Starke | 1977-04-24T08:00:00Z | 1977-04-24 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Boise | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/Cambridge_Bay | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/Denver | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/Edmonton | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/North_Dakota/Beulah | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/North_Dakota/Center | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/North_Dakota/New_Salem | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/Shiprock | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/Yellowknife | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| Canada/Mountain | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| MST7MDT | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| Navajo | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| US/Mountain | 1977-04-24T09:00:00Z | 1977-04-24 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/Ensenada | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Fort_Nelson | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Inuvik | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Juneau | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Los_Angeles | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Metlakatla | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Santa_Isabel | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Sitka | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Tijuana | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Vancouver | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| Canada/Pacific | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| Mexico/BajaNorte | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| PST8PDT | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| US/Pacific | 1977-04-24T10:00:00Z | 1977-04-24 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Yakutat | 1977-04-24T11:00:00Z | 1977-04-24 03:00:00 | -09:00 → -08:00 | YDT | Yes | gap |
| America/Anchorage | 1977-04-24T12:00:00Z | 1977-04-24 03:00:00 | -10:00 → -09:00 | AHDT | Yes | gap |
| US/Alaska | 1977-04-24T12:00:00Z | 1977-04-24 03:00:00 | -10:00 → -09:00 | AHDT | Yes | gap |
| America/Adak | 1977-04-24T13:00:00Z | 1977-04-24 03:00:00 | -11:00 → -10:00 | BDT | Yes | gap |
| America/Atka | 1977-04-24T13:00:00Z | 1977-04-24 03:00:00 | -11:00 → -10:00 | BDT | Yes | gap |
| America/Nome | 1977-04-24T13:00:00Z | 1977-04-24 03:00:00 | -11:00 → -10:00 | BDT | Yes | gap |
| US/Aleutian | 1977-04-24T13:00:00Z | 1977-04-24 03:00:00 | -11:00 → -10:00 | BDT | Yes | gap |
| Africa/Tunis | 1977-04-29T23:00:00Z | 1977-04-30 01:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Asia/Amman | 1977-04-30T22:00:00Z | 1977-05-01 01:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Asia/Beirut | 1977-04-30T22:00:00Z | 1977-05-01 01:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Africa/Cairo | 1977-04-30T23:00:00Z | 1977-05-01 02:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Egypt | 1977-04-30T23:00:00Z | 1977-05-01 02:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Africa/Casablanca | 1977-05-01T00:00:00Z | 1977-05-01 01:00:00 | +00:00 → +01:00 | +01 | Yes | gap |
| Africa/Ceuta | 1977-05-01T00:00:00Z | 1977-05-01 01:00:00 | +00:00 → +01:00 | WEST | Yes | gap |
| Africa/El_Aaiun | 1977-05-01T00:00:00Z | 1977-05-01 01:00:00 | +00:00 → +01:00 | +01 | Yes | gap |
| Asia/Damascus | 1977-05-01T00:00:00Z | 1977-05-01 03:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Africa/Algiers | 1977-05-06T00:00:00Z | 1977-05-06 01:00:00 | +00:00 → +01:00 | WEST | Yes | gap |
| Europe/Tirane | 1977-05-07T23:00:00Z | 1977-05-08 01:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/Rome | 1977-05-21T23:00:00Z | 1977-05-22 01:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/San_Marino | 1977-05-21T23:00:00Z | 1977-05-22 01:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/Vatican | 1977-05-21T23:00:00Z | 1977-05-22 01:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| America/Barbados | 1977-06-12T06:00:00Z | 1977-06-12 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
| Pacific/Guam | 1977-08-27T15:00:00Z | 1977-08-28 01:00:00 | +11:00 → +10:00 | GST | No | overlap |
| Pacific/Saipan | 1977-08-27T15:00:00Z | 1977-08-28 01:00:00 | +11:00 → +10:00 | GST | No | overlap |
| Asia/Damascus | 1977-08-31T23:00:00Z | 1977-09-01 01:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Europe/Malta | 1977-09-18T00:00:00Z | 1977-09-18 01:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Asia/Manila | 1977-09-21T15:00:00Z | 1977-09-21 23:00:00 | +09:00 → +08:00 | PST | No | overlap |
| Africa/Tunis | 1977-09-23T23:00:00Z | 1977-09-24 00:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Asia/Famagusta | 1977-09-24T21:00:00Z | 1977-09-24 23:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Asia/Nicosia | 1977-09-24T21:00:00Z | 1977-09-24 23:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Europe/Nicosia | 1977-09-24T21:00:00Z | 1977-09-24 23:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Europe/Madrid | 1977-09-24T23:00:00Z | 1977-09-25 00:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Europe/Rome | 1977-09-24T23:00:00Z | 1977-09-25 00:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Europe/San_Marino | 1977-09-24T23:00:00Z | 1977-09-25 00:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Europe/Vatican | 1977-09-24T23:00:00Z | 1977-09-25 00:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Europe/Lisbon | 1977-09-25T00:00:00Z | 1977-09-25 00:00:00 | +01:00 → +00:00 | WET | No | overlap |
| Europe/Warsaw | 1977-09-25T00:00:00Z | 1977-09-25 01:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Poland | 1977-09-25T00:00:00Z | 1977-09-25 01:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Portugal | 1977-09-25T00:00:00Z | 1977-09-25 00:00:00 | +01:00 → +00:00 | WET | No | overlap |
| WET | 1977-09-25T00:00:00Z | 1977-09-25 00:00:00 | +01:00 → +00:00 | WET | No | overlap |
| CET | 1977-09-25T01:00:00Z | 1977-09-25 02:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Europe/Amsterdam | 1977-09-25T01:00:00Z | 1977-09-25 02:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Europe/Brussels | 1977-09-25T01:00:00Z | 1977-09-25 02:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Europe/Luxembourg | 1977-09-25T01:00:00Z | 1977-09-25 02:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Europe/Monaco | 1977-09-25T01:00:00Z | 1977-09-25 02:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Europe/Paris | 1977-09-25T01:00:00Z | 1977-09-25 02:00:00 | +02:00 → +01:00 | CET | No | overlap |
| MET | 1977-09-25T01:00:00Z | 1977-09-25 02:00:00 | +02:00 → +01:00 | CET | No | overlap |
| EET | 1977-09-26T00:00:00Z | 1977-09-26 02:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Europe/Athens | 1977-09-26T00:00:00Z | 1977-09-26 02:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Africa/Casablanca | 1977-09-27T23:00:00Z | 1977-09-27 23:00:00 | +01:00 → +00:00 | +00 | No | overlap |
| Africa/Ceuta | 1977-09-27T23:00:00Z | 1977-09-27 23:00:00 | +01:00 → +00:00 | WET | No | overlap |
| Africa/El_Aaiun | 1977-09-27T23:00:00Z | 1977-09-27 23:00:00 | +01:00 → +00:00 | +00 | No | overlap |
| Asia/Amman | 1977-09-30T21:00:00Z | 1977-09-30 23:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Asia/Beirut | 1977-09-30T21:00:00Z | 1977-09-30 23:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Africa/Cairo | 1977-10-01T00:00:00Z | 1977-10-01 02:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Egypt | 1977-10-01T00:00:00Z | 1977-10-01 02:00:00 | +03:00 → +02:00 | EET | No | overlap |
| America/Asuncion | 1977-10-01T04:00:00Z | 1977-10-01 01:00:00 | -04:00 → -03:00 | -03 | Yes | gap |
| Europe/Tirane | 1977-10-01T22:00:00Z | 1977-10-01 23:00:00 | +02:00 → +01:00 | CET | No | overlap |
| America/Barbados | 1977-10-02T05:00:00Z | 1977-10-02 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
| America/Coyhaique | 1977-10-09T04:00:00Z | 1977-10-09 01:00:00 | -04:00 → -03:00 | -03 | Yes | gap |
| America/Punta_Arenas | 1977-10-09T04:00:00Z | 1977-10-09 01:00:00 | -04:00 → -03:00 | -03 | Yes | gap |
| America/Santiago | 1977-10-09T04:00:00Z | 1977-10-09 01:00:00 | -04:00 → -03:00 | -03 | Yes | gap |
| Chile/Continental | 1977-10-09T04:00:00Z | 1977-10-09 01:00:00 | -04:00 → -03:00 | -03 | Yes | gap |
| Chile/EasterIsland | 1977-10-09T04:00:00Z | 1977-10-08 22:00:00 | -07:00 → -06:00 | -06 | Yes | gap |
| Pacific/Easter | 1977-10-09T04:00:00Z | 1977-10-08 22:00:00 | -07:00 → -06:00 | -06 | Yes | gap |
| Africa/Juba | 1977-10-14T21:00:00Z | 1977-10-14 23:00:00 | +03:00 → +02:00 | CAT | No | overlap |
| Africa/Khartoum | 1977-10-14T21:00:00Z | 1977-10-14 23:00:00 | +03:00 → +02:00 | CAT | No | overlap |
| Asia/Istanbul | 1977-10-15T23:00:00Z | 1977-10-16 01:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Europe/Istanbul | 1977-10-15T23:00:00Z | 1977-10-16 01:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Turkey | 1977-10-15T23:00:00Z | 1977-10-16 01:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Asia/Tehran | 1977-10-20T19:30:00Z | 1977-10-20 23:30:00 | +04:30 → +04:00 | +04 | No | overlap |
| Iran | 1977-10-20T19:30:00Z | 1977-10-20 23:30:00 | +04:30 → +04:00 | +04 | No | overlap |
| Africa/Algiers | 1977-10-20T23:00:00Z | 1977-10-21 00:00:00 | +01:00 → +01:00 | CET | No | offset-only |
| Eire | 1977-10-23T02:00:00Z | 1977-10-23 02:00:00 | +01:00 → +00:00 | GMT | Yes | overlap |
| Europe/Belfast | 1977-10-23T02:00:00Z | 1977-10-23 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| Europe/Dublin | 1977-10-23T02:00:00Z | 1977-10-23 02:00:00 | +01:00 → +00:00 | GMT | Yes | overlap |
| Europe/Guernsey | 1977-10-23T02:00:00Z | 1977-10-23 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| Europe/Isle_of_Man | 1977-10-23T02:00:00Z | 1977-10-23 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| Europe/Jersey | 1977-10-23T02:00:00Z | 1977-10-23 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| Europe/London | 1977-10-23T02:00:00Z | 1977-10-23 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| GB | 1977-10-23T02:00:00Z | 1977-10-23 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| GB-Eire | 1977-10-23T02:00:00Z | 1977-10-23 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| Antarctica/McMurdo | 1977-10-29T14:00:00Z | 1977-10-30 03:00:00 | +12:00 → +13:00 | NZDT | Yes | gap |
| Antarctica/South_Pole | 1977-10-29T14:00:00Z | 1977-10-30 03:00:00 | +12:00 → +13:00 | NZDT | Yes | gap |
| NZ | 1977-10-29T14:00:00Z | 1977-10-30 03:00:00 | +12:00 → +13:00 | NZDT | Yes | gap |
| NZ-CHAT | 1977-10-29T14:00:00Z | 1977-10-30 03:45:00 | +12:45 → +13:45 | +1345 | Yes | gap |
| Pacific/Auckland | 1977-10-29T14:00:00Z | 1977-10-30 03:00:00 | +12:00 → +13:00 | NZDT | Yes | gap |
| Pacific/Chatham | 1977-10-29T14:00:00Z | 1977-10-30 03:45:00 | +12:45 → +13:45 | +1345 | Yes | gap |
| Antarctica/Macquarie | 1977-10-29T16:00:00Z | 1977-10-30 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/ACT | 1977-10-29T16:00:00Z | 1977-10-30 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Canberra | 1977-10-29T16:00:00Z | 1977-10-30 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Currie | 1977-10-29T16:00:00Z | 1977-10-30 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Hobart | 1977-10-29T16:00:00Z | 1977-10-30 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Melbourne | 1977-10-29T16:00:00Z | 1977-10-30 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/NSW | 1977-10-29T16:00:00Z | 1977-10-30 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Sydney | 1977-10-29T16:00:00Z | 1977-10-30 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Tasmania | 1977-10-29T16:00:00Z | 1977-10-30 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Victoria | 1977-10-29T16:00:00Z | 1977-10-30 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Adelaide | 1977-10-29T16:30:00Z | 1977-10-30 03:00:00 | +09:30 → +10:30 | ACDT | Yes | gap |
| Australia/Broken_Hill | 1977-10-29T16:30:00Z | 1977-10-30 03:00:00 | +09:30 → +10:30 | ACDT | Yes | gap |
| Australia/South | 1977-10-29T16:30:00Z | 1977-10-30 03:00:00 | +09:30 → +10:30 | ACDT | Yes | gap |
| Australia/Yancowinna | 1977-10-29T16:30:00Z | 1977-10-30 03:00:00 | +09:30 → +10:30 | ACDT | Yes | gap |
| America/Havana | 1977-10-30T04:00:00Z | 1977-10-29 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
| Cuba | 1977-10-30T04:00:00Z | 1977-10-29 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
| America/St_Johns | 1977-10-30T04:30:00Z | 1977-10-30 01:00:00 | -02:30 → -03:30 | NST | No | overlap |
| Canada/Newfoundland | 1977-10-30T04:30:00Z | 1977-10-30 01:00:00 | -02:30 → -03:30 | NST | No | overlap |
| America/Glace_Bay | 1977-10-30T05:00:00Z | 1977-10-30 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
| America/Goose_Bay | 1977-10-30T05:00:00Z | 1977-10-30 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
| America/Halifax | 1977-10-30T05:00:00Z | 1977-10-30 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
| America/Moncton | 1977-10-30T05:00:00Z | 1977-10-30 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
| Atlantic/Bermuda | 1977-10-30T05:00:00Z | 1977-10-30 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
| Canada/Atlantic | 1977-10-30T05:00:00Z | 1977-10-30 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
| America/Detroit | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Iqaluit | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Jamaica | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Kentucky/Louisville | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Louisville | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Montreal | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Nassau | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/New_York | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Nipigon | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Pangnirtung | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Thunder_Bay | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Toronto | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| Canada/Eastern | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| EST5EDT | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| Jamaica | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| US/Eastern | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| US/Michigan | 1977-10-30T06:00:00Z | 1977-10-30 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Chicago | 1977-10-30T07:00:00Z | 1977-10-30 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Indiana/Knox | 1977-10-30T07:00:00Z | 1977-10-30 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Indiana/Petersburg | 1977-10-30T07:00:00Z | 1977-10-30 02:00:00 | -05:00 → -05:00 | EST | No | offset-only |
| America/Kentucky/Monticello | 1977-10-30T07:00:00Z | 1977-10-30 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Knox_IN | 1977-10-30T07:00:00Z | 1977-10-30 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Menominee | 1977-10-30T07:00:00Z | 1977-10-30 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Rankin_Inlet | 1977-10-30T07:00:00Z | 1977-10-30 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Resolute | 1977-10-30T07:00:00Z | 1977-10-30 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| CST6CDT | 1977-10-30T07:00:00Z | 1977-10-30 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| US/Central | 1977-10-30T07:00:00Z | 1977-10-30 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| US/Indiana-Starke | 1977-10-30T07:00:00Z | 1977-10-30 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Boise | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/Cambridge_Bay | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/Denver | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/Edmonton | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/North_Dakota/Beulah | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/North_Dakota/Center | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/North_Dakota/New_Salem | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/Rainy_River | 1977-10-30T08:00:00Z | 1977-10-30 02:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Shiprock | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/Winnipeg | 1977-10-30T08:00:00Z | 1977-10-30 02:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Yellowknife | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| Canada/Central | 1977-10-30T08:00:00Z | 1977-10-30 02:00:00 | -05:00 → -06:00 | CST | No | overlap |
| Canada/Mountain | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| MST7MDT | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| Navajo | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| US/Mountain | 1977-10-30T08:00:00Z | 1977-10-30 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/Ensenada | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Fort_Nelson | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Inuvik | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Juneau | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Los_Angeles | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Metlakatla | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Santa_Isabel | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Sitka | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Tijuana | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Vancouver | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| Canada/Pacific | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| Mexico/BajaNorte | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| PST8PDT | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| US/Pacific | 1977-10-30T09:00:00Z | 1977-10-30 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Yakutat | 1977-10-30T10:00:00Z | 1977-10-30 01:00:00 | -08:00 → -09:00 | YST | No | overlap |
| America/Anchorage | 1977-10-30T11:00:00Z | 1977-10-30 01:00:00 | -09:00 → -10:00 | AHST | No | overlap |
| US/Alaska | 1977-10-30T11:00:00Z | 1977-10-30 01:00:00 | -09:00 → -10:00 | AHST | No | overlap |
| America/Adak | 1977-10-30T12:00:00Z | 1977-10-30 01:00:00 | -10:00 → -11:00 | BST | No | overlap |
| America/Atka | 1977-10-30T12:00:00Z | 1977-10-30 01:00:00 | -10:00 → -11:00 | BST | No | overlap |
| America/Nome | 1977-10-30T12:00:00Z | 1977-10-30 01:00:00 | -10:00 → -11:00 | BST | No | overlap |
| US/Aleutian | 1977-10-30T12:00:00Z | 1977-10-30 01:00:00 | -10:00 → -11:00 | BST | No | overlap |
| Pacific/Noumea | 1977-12-03T13:00:00Z | 1977-12-04 01:00:00 | +11:00 → +12:00 | +12 | Yes | gap |
| America/Montevideo | 1977-12-04T03:00:00Z | 1977-12-04 01:00:00 | -03:00 → -02:00 | -02 | Yes | gap |
| Asia/Choibalsan | 1977-12-31T17:00:00Z | 1978-01-01 01:00:00 | +07:00 → +08:00 | +08 | No | gap |
| Asia/Ulaanbaatar | 1977-12-31T17:00:00Z | 1978-01-01 01:00:00 | +07:00 → +08:00 | +08 | No | gap |
| Asia/Ulan_Bator | 1977-12-31T17:00:00Z | 1978-01-01 01:00:00 | +07:00 → +08:00 | +08 | No | gap |
| Asia/Hovd | 1977-12-31T18:00:00Z | 1978-01-01 01:00:00 | +06:00 → +07:00 | +07 | No | gap |