Time Zone Changes in 1971
In 1971, 201 time zone transitions occurred across 112 regions worldwide. Clocks moved forward in 102 transitions (gaps) and turned back in 98 transitions (overlaps).
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Transitions in 1971 (201)
| Zone | Instant (UTC) | Local Wall Time | Shift | Abbreviation | DST | Effect |
|---|---|---|---|---|---|---|
| America/Santo_Domingo | 1971-01-20T04:30:00Z | 1971-01-19 23:30:00 | -04:30 → -05:00 | EST | No | overlap |
| Antarctica/Macquarie | 1971-03-13T16:00:00Z | 1971-03-14 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/Currie | 1971-03-13T16:00:00Z | 1971-03-14 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/Hobart | 1971-03-13T16:00:00Z | 1971-03-14 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| Australia/Tasmania | 1971-03-13T16:00:00Z | 1971-03-14 02:00:00 | +11:00 → +10:00 | AEST | No | overlap |
| America/Coyhaique | 1971-03-14T03:00:00Z | 1971-03-13 23:00:00 | -03:00 → -04:00 | -04 | No | overlap |
| America/Punta_Arenas | 1971-03-14T03:00:00Z | 1971-03-13 23:00:00 | -03:00 → -04:00 | -04 | No | overlap |
| America/Santiago | 1971-03-14T03:00:00Z | 1971-03-13 23:00:00 | -03:00 → -04:00 | -04 | No | overlap |
| Chile/Continental | 1971-03-14T03:00:00Z | 1971-03-13 23:00:00 | -03:00 → -04:00 | -04 | No | overlap |
| Chile/EasterIsland | 1971-03-14T03:00:00Z | 1971-03-13 20:00:00 | -06:00 → -07:00 | -07 | No | overlap |
| Pacific/Easter | 1971-03-14T03:00:00Z | 1971-03-13 20:00:00 | -06:00 → -07:00 | -07 | No | overlap |
| Asia/Karachi | 1971-03-25T19:00:00Z | 1971-03-26 00:00:00 | +05:00 → +05:00 | PKT | No | offset-only |
| Asia/Hong_Kong | 1971-04-17T19:30:00Z | 1971-04-18 04:30:00 | +08:00 → +09:00 | HKST | Yes | gap |
| Asia/Macao | 1971-04-17T19:30:00Z | 1971-04-18 04:30:00 | +08:00 → +09:00 | CDT | Yes | gap |
| Asia/Macau | 1971-04-17T19:30:00Z | 1971-04-18 04:30:00 | +08:00 → +09:00 | CDT | Yes | gap |
| Hongkong | 1971-04-17T19:30:00Z | 1971-04-18 04:30:00 | +08:00 → +09:00 | HKST | Yes | gap |
| Pacific/Guam | 1971-04-24T16:00:00Z | 1971-04-25 03:00:00 | +10:00 → +11:00 | GDT | Yes | gap |
| Pacific/Saipan | 1971-04-24T16:00:00Z | 1971-04-25 03:00:00 | +10:00 → +11:00 | GDT | Yes | gap |
| America/Havana | 1971-04-25T05:00:00Z | 1971-04-25 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
| Cuba | 1971-04-25T05:00:00Z | 1971-04-25 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
| America/St_Johns | 1971-04-25T05:30:00Z | 1971-04-25 03:00:00 | -03:30 → -02:30 | NDT | Yes | gap |
| Canada/Newfoundland | 1971-04-25T05:30:00Z | 1971-04-25 03:00:00 | -03:30 → -02:30 | NDT | Yes | gap |
| America/Goose_Bay | 1971-04-25T06:00:00Z | 1971-04-25 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
| America/Halifax | 1971-04-25T06:00:00Z | 1971-04-25 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
| America/Moncton | 1971-04-25T06:00:00Z | 1971-04-25 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
| Canada/Atlantic | 1971-04-25T06:00:00Z | 1971-04-25 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
| America/Indiana/Marengo | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Indiana/Vevay | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Kentucky/Louisville | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Louisville | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Montreal | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Nassau | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/New_York | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Nipigon | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Thunder_Bay | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Toronto | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| Canada/Eastern | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| EST5EDT | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| US/Eastern | 1971-04-25T07:00:00Z | 1971-04-25 03:00:00 | -05:00 → -04:00 | EDT | Yes | gap |
| America/Chicago | 1971-04-25T08:00:00Z | 1971-04-25 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Indiana/Knox | 1971-04-25T08:00:00Z | 1971-04-25 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Indiana/Petersburg | 1971-04-25T08:00:00Z | 1971-04-25 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Kentucky/Monticello | 1971-04-25T08:00:00Z | 1971-04-25 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Knox_IN | 1971-04-25T08:00:00Z | 1971-04-25 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Rainy_River | 1971-04-25T08:00:00Z | 1971-04-25 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Winnipeg | 1971-04-25T08:00:00Z | 1971-04-25 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| CST6CDT | 1971-04-25T08:00:00Z | 1971-04-25 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| Canada/Central | 1971-04-25T08:00:00Z | 1971-04-25 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| US/Central | 1971-04-25T08:00:00Z | 1971-04-25 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| US/Indiana-Starke | 1971-04-25T08:00:00Z | 1971-04-25 03:00:00 | -06:00 → -05:00 | CDT | Yes | gap |
| America/Boise | 1971-04-25T09:00:00Z | 1971-04-25 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/Denver | 1971-04-25T09:00:00Z | 1971-04-25 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/North_Dakota/Beulah | 1971-04-25T09:00:00Z | 1971-04-25 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/North_Dakota/Center | 1971-04-25T09:00:00Z | 1971-04-25 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/North_Dakota/New_Salem | 1971-04-25T09:00:00Z | 1971-04-25 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/Shiprock | 1971-04-25T09:00:00Z | 1971-04-25 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| MST7MDT | 1971-04-25T09:00:00Z | 1971-04-25 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| Navajo | 1971-04-25T09:00:00Z | 1971-04-25 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| US/Mountain | 1971-04-25T09:00:00Z | 1971-04-25 03:00:00 | -07:00 → -06:00 | MDT | Yes | gap |
| America/Dawson_Creek | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Ensenada | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Fort_Nelson | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Juneau | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Los_Angeles | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Metlakatla | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Santa_Isabel | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Sitka | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Tijuana | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Vancouver | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| Canada/Pacific | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| Mexico/BajaNorte | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| PST8PDT | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| US/Pacific | 1971-04-25T10:00:00Z | 1971-04-25 03:00:00 | -08:00 → -07:00 | PDT | Yes | gap |
| America/Yakutat | 1971-04-25T11:00:00Z | 1971-04-25 03:00:00 | -09:00 → -08:00 | YDT | Yes | gap |
| America/Anchorage | 1971-04-25T12:00:00Z | 1971-04-25 03:00:00 | -10:00 → -09:00 | AHDT | Yes | gap |
| US/Alaska | 1971-04-25T12:00:00Z | 1971-04-25 03:00:00 | -10:00 → -09:00 | AHDT | Yes | gap |
| America/Adak | 1971-04-25T13:00:00Z | 1971-04-25 03:00:00 | -11:00 → -10:00 | BDT | Yes | gap |
| America/Atka | 1971-04-25T13:00:00Z | 1971-04-25 03:00:00 | -11:00 → -10:00 | BDT | Yes | gap |
| America/Nome | 1971-04-25T13:00:00Z | 1971-04-25 03:00:00 | -11:00 → -10:00 | BDT | Yes | gap |
| US/Aleutian | 1971-04-25T13:00:00Z | 1971-04-25 03:00:00 | -11:00 → -10:00 | BDT | Yes | gap |
| Africa/Algiers | 1971-04-25T23:00:00Z | 1971-04-26 00:00:00 | +00:00 → +01:00 | WEST | Yes | gap |
| Africa/Juba | 1971-04-29T22:00:00Z | 1971-04-30 01:00:00 | +02:00 → +03:00 | CAST | Yes | gap |
| Africa/Khartoum | 1971-04-29T22:00:00Z | 1971-04-30 01:00:00 | +02:00 → +03:00 | CAST | Yes | gap |
| Africa/Cairo | 1971-04-30T23:00:00Z | 1971-05-01 02:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Egypt | 1971-04-30T23:00:00Z | 1971-05-01 02:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Asia/Damascus | 1971-05-01T00:00:00Z | 1971-05-01 03:00:00 | +02:00 → +03:00 | EEST | Yes | gap |
| Europe/Malta | 1971-05-22T23:00:00Z | 1971-05-23 01:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/Rome | 1971-05-22T23:00:00Z | 1971-05-23 01:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/San_Marino | 1971-05-22T23:00:00Z | 1971-05-23 01:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Europe/Vatican | 1971-05-22T23:00:00Z | 1971-05-23 01:00:00 | +01:00 → +02:00 | CEST | Yes | gap |
| Pacific/Guam | 1971-09-04T15:00:00Z | 1971-09-05 01:00:00 | +11:00 → +10:00 | GST | No | overlap |
| Pacific/Saipan | 1971-09-04T15:00:00Z | 1971-09-05 01:00:00 | +11:00 → +10:00 | GST | No | overlap |
| Europe/Malta | 1971-09-25T23:00:00Z | 1971-09-26 00:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Europe/Rome | 1971-09-25T23:00:00Z | 1971-09-26 00:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Europe/San_Marino | 1971-09-25T23:00:00Z | 1971-09-26 00:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Europe/Vatican | 1971-09-25T23:00:00Z | 1971-09-26 00:00:00 | +02:00 → +01:00 | CET | No | overlap |
| Africa/Algiers | 1971-09-26T23:00:00Z | 1971-09-26 23:00:00 | +01:00 → +00:00 | WET | No | overlap |
| Asia/Damascus | 1971-09-30T23:00:00Z | 1971-10-01 01:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Africa/Cairo | 1971-10-01T00:00:00Z | 1971-10-01 02:00:00 | +03:00 → +02:00 | EET | No | overlap |
| Egypt | 1971-10-01T00:00:00Z | 1971-10-01 02:00:00 | +03:00 → +02:00 | EET | No | overlap |
| America/Coyhaique | 1971-10-10T04:00:00Z | 1971-10-10 01:00:00 | -04:00 → -03:00 | -03 | Yes | gap |
| America/Punta_Arenas | 1971-10-10T04:00:00Z | 1971-10-10 01:00:00 | -04:00 → -03:00 | -03 | Yes | gap |
| America/Santiago | 1971-10-10T04:00:00Z | 1971-10-10 01:00:00 | -04:00 → -03:00 | -03 | Yes | gap |
| Chile/Continental | 1971-10-10T04:00:00Z | 1971-10-10 01:00:00 | -04:00 → -03:00 | -03 | Yes | gap |
| Chile/EasterIsland | 1971-10-10T04:00:00Z | 1971-10-09 22:00:00 | -07:00 → -06:00 | -06 | Yes | gap |
| Pacific/Easter | 1971-10-10T04:00:00Z | 1971-10-09 22:00:00 | -07:00 → -06:00 | -06 | Yes | gap |
| Africa/Juba | 1971-10-14T21:00:00Z | 1971-10-14 23:00:00 | +03:00 → +02:00 | CAT | No | overlap |
| Africa/Khartoum | 1971-10-14T21:00:00Z | 1971-10-14 23:00:00 | +03:00 → +02:00 | CAT | No | overlap |
| Asia/Hong_Kong | 1971-10-16T18:30:00Z | 1971-10-17 02:30:00 | +09:00 → +08:00 | HKT | No | overlap |
| Asia/Macao | 1971-10-16T18:30:00Z | 1971-10-17 02:30:00 | +09:00 → +08:00 | CST | No | overlap |
| Asia/Macau | 1971-10-16T18:30:00Z | 1971-10-17 02:30:00 | +09:00 → +08:00 | CST | No | overlap |
| Hongkong | 1971-10-16T18:30:00Z | 1971-10-17 02:30:00 | +09:00 → +08:00 | HKT | No | overlap |
| Antarctica/Macquarie | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/ACT | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Brisbane | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Canberra | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Currie | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Hobart | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Lindeman | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Melbourne | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/NSW | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Queensland | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Sydney | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Tasmania | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Victoria | 1971-10-30T16:00:00Z | 1971-10-31 03:00:00 | +10:00 → +11:00 | AEDT | Yes | gap |
| Australia/Adelaide | 1971-10-30T16:30:00Z | 1971-10-31 03:00:00 | +09:30 → +10:30 | ACDT | Yes | gap |
| Australia/Broken_Hill | 1971-10-30T16:30:00Z | 1971-10-31 03:00:00 | +09:30 → +10:30 | ACDT | Yes | gap |
| Australia/South | 1971-10-30T16:30:00Z | 1971-10-31 03:00:00 | +09:30 → +10:30 | ACDT | Yes | gap |
| Australia/Yancowinna | 1971-10-30T16:30:00Z | 1971-10-31 03:00:00 | +09:30 → +10:30 | ACDT | Yes | gap |
| Eire | 1971-10-31T02:00:00Z | 1971-10-31 02:00:00 | +01:00 → +00:00 | GMT | Yes | overlap |
| Europe/Belfast | 1971-10-31T02:00:00Z | 1971-10-31 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| Europe/Dublin | 1971-10-31T02:00:00Z | 1971-10-31 02:00:00 | +01:00 → +00:00 | GMT | Yes | overlap |
| Europe/Guernsey | 1971-10-31T02:00:00Z | 1971-10-31 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| Europe/Isle_of_Man | 1971-10-31T02:00:00Z | 1971-10-31 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| Europe/Jersey | 1971-10-31T02:00:00Z | 1971-10-31 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| Europe/London | 1971-10-31T02:00:00Z | 1971-10-31 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| GB | 1971-10-31T02:00:00Z | 1971-10-31 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| GB-Eire | 1971-10-31T02:00:00Z | 1971-10-31 02:00:00 | +01:00 → +00:00 | GMT | No | overlap |
| America/Havana | 1971-10-31T04:00:00Z | 1971-10-30 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
| Cuba | 1971-10-31T04:00:00Z | 1971-10-30 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
| America/St_Johns | 1971-10-31T04:30:00Z | 1971-10-31 01:00:00 | -02:30 → -03:30 | NST | No | overlap |
| Canada/Newfoundland | 1971-10-31T04:30:00Z | 1971-10-31 01:00:00 | -02:30 → -03:30 | NST | No | overlap |
| America/Goose_Bay | 1971-10-31T05:00:00Z | 1971-10-31 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
| America/Halifax | 1971-10-31T05:00:00Z | 1971-10-31 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
| America/Moncton | 1971-10-31T05:00:00Z | 1971-10-31 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
| America/Santo_Domingo | 1971-10-31T05:00:00Z | 1971-10-31 00:30:00 | -05:00 → -04:30 | -0430 | Yes | gap |
| Canada/Atlantic | 1971-10-31T05:00:00Z | 1971-10-31 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
| America/Indiana/Marengo | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Indiana/Vevay | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Kentucky/Louisville | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Louisville | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Montreal | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Nassau | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/New_York | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Nipigon | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Thunder_Bay | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Toronto | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| Canada/Eastern | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| EST5EDT | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| US/Eastern | 1971-10-31T06:00:00Z | 1971-10-31 01:00:00 | -04:00 → -05:00 | EST | No | overlap |
| America/Chicago | 1971-10-31T07:00:00Z | 1971-10-31 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Indiana/Knox | 1971-10-31T07:00:00Z | 1971-10-31 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Indiana/Petersburg | 1971-10-31T07:00:00Z | 1971-10-31 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Kentucky/Monticello | 1971-10-31T07:00:00Z | 1971-10-31 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Knox_IN | 1971-10-31T07:00:00Z | 1971-10-31 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| CST6CDT | 1971-10-31T07:00:00Z | 1971-10-31 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| US/Central | 1971-10-31T07:00:00Z | 1971-10-31 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| US/Indiana-Starke | 1971-10-31T07:00:00Z | 1971-10-31 01:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Boise | 1971-10-31T08:00:00Z | 1971-10-31 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/Denver | 1971-10-31T08:00:00Z | 1971-10-31 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/North_Dakota/Beulah | 1971-10-31T08:00:00Z | 1971-10-31 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/North_Dakota/Center | 1971-10-31T08:00:00Z | 1971-10-31 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/North_Dakota/New_Salem | 1971-10-31T08:00:00Z | 1971-10-31 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/Rainy_River | 1971-10-31T08:00:00Z | 1971-10-31 02:00:00 | -05:00 → -06:00 | CST | No | overlap |
| America/Shiprock | 1971-10-31T08:00:00Z | 1971-10-31 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/Winnipeg | 1971-10-31T08:00:00Z | 1971-10-31 02:00:00 | -05:00 → -06:00 | CST | No | overlap |
| Canada/Central | 1971-10-31T08:00:00Z | 1971-10-31 02:00:00 | -05:00 → -06:00 | CST | No | overlap |
| MST7MDT | 1971-10-31T08:00:00Z | 1971-10-31 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| Navajo | 1971-10-31T08:00:00Z | 1971-10-31 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| US/Mountain | 1971-10-31T08:00:00Z | 1971-10-31 01:00:00 | -06:00 → -07:00 | MST | No | overlap |
| America/Dawson_Creek | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Ensenada | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Fort_Nelson | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Juneau | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Los_Angeles | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Metlakatla | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Santa_Isabel | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Sitka | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Tijuana | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Vancouver | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| Canada/Pacific | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| Mexico/BajaNorte | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| PST8PDT | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| US/Pacific | 1971-10-31T09:00:00Z | 1971-10-31 01:00:00 | -07:00 → -08:00 | PST | No | overlap |
| America/Yakutat | 1971-10-31T10:00:00Z | 1971-10-31 01:00:00 | -08:00 → -09:00 | YST | No | overlap |
| America/Anchorage | 1971-10-31T11:00:00Z | 1971-10-31 01:00:00 | -09:00 → -10:00 | AHST | No | overlap |
| US/Alaska | 1971-10-31T11:00:00Z | 1971-10-31 01:00:00 | -09:00 → -10:00 | AHST | No | overlap |
| America/Adak | 1971-10-31T12:00:00Z | 1971-10-31 01:00:00 | -10:00 → -11:00 | BST | No | overlap |
| America/Atka | 1971-10-31T12:00:00Z | 1971-10-31 01:00:00 | -10:00 → -11:00 | BST | No | overlap |
| America/Nome | 1971-10-31T12:00:00Z | 1971-10-31 01:00:00 | -10:00 → -11:00 | BST | No | overlap |
| US/Aleutian | 1971-10-31T12:00:00Z | 1971-10-31 01:00:00 | -10:00 → -11:00 | BST | No | overlap |