Epoch Converter
Time zone list / Epoch to time zone converter
There is only one Unix time and it is created by using the UTC/GMT time zone. This means you might have convert time zones to calculate timestamps. Most programming languages have libraries to help you converting time zones, calculating by hand might not be a good idea because of the variety of time zones en daylight saving times. But here's a list of time zones and offset in seconds.
Convert epoch to other time zone
Conversion results (1640148818)
1640148818 converts to Tuesday December 21, 2021 22:53:38 (pm) in time zone America/Chicago (CST)The offset (difference to Greenwich Time/GMT) is -06:00 or in seconds -21600.
Other time zones
The 'Converted timestamp' column shows the time for Unix timestamp 1640148818 (Dec 22 2021 04:53:38 UTC/GMT).
| Region (time zone) | Converted timestamp 1640148818 |
Relative to UTC/ |
Date in DST |
Offset In seconds |
|---|---|---|---|---|
| Africa | ||||
| Africa/Abidjan (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Accra (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Addis Ababa (EAT) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Africa/Algiers (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Asmara (EAT) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Africa/Bamako (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Bangui (WAT) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Banjul (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Bissau (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Blantyre (CAT) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Brazzaville (WAT) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Bujumbura (CAT) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Cairo (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Casablanca (+01) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Ceuta (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Conakry (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Dakar (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Dar es Salaam (EAT) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Africa/Djibouti (EAT) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Africa/Douala (WAT) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/El Aaiun (+01) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Freetown (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Gaborone (CAT) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Harare (CAT) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Johannesburg (SAST) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Juba (CAT) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Kampala (EAT) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Africa/Khartoum (CAT) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Kigali (CAT) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Kinshasa (WAT) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Lagos (WAT) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Libreville (WAT) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Lome (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Luanda (WAT) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Lubumbashi (CAT) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Lusaka (CAT) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Malabo (WAT) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Maputo (CAT) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Maseru (SAST) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Mbabane (SAST) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Mogadishu (EAT) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Africa/Monrovia (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Nairobi (EAT) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Africa/Ndjamena (WAT) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Niamey (WAT) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Nouakchott (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Ouagadougou (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Porto-Novo (WAT) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Sao Tome (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Africa/Tripoli (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Africa/Tunis (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Africa/Windhoek (CAT) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| America | ||||
| America/Adak (HST) | Dec 21 2021 18:53:38 | GMT -10:00 | -36000 | |
| America/Anchorage (AKST) | Dec 21 2021 19:53:38 | GMT -09:00 | -32400 | |
| America/Anguilla (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Antigua (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Araguaina (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Argentina/Buenos Aires (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Argentina/Catamarca (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Argentina/Cordoba (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Argentina/Jujuy (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Argentina/La Rioja (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Argentina/Mendoza (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Argentina/Rio Gallegos (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Argentina/Salta (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Argentina/San Juan (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Argentina/San Luis (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Argentina/Tucuman (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Argentina/Ushuaia (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Aruba (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Asuncion (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | DST | -10800 |
| America/Atikokan (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Bahia (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Bahia Banderas (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Barbados (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Belem (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Belize (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Blanc-Sablon (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Boa Vista (-04) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Bogota (-05) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Boise (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Cambridge Bay (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Campo Grande (-04) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Cancun (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Caracas (-04) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Cayenne (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Cayman (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Chicago (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Chihuahua (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Costa Rica (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Creston (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Cuiaba (-04) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Curacao (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Danmarkshavn (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| America/Dawson (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Dawson Creek (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Denver (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Detroit (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Dominica (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Edmonton (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Eirunepe (-05) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/El Salvador (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Fort Nelson (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Fortaleza (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Glace Bay (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Goose Bay (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Grand Turk (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Grenada (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Guadeloupe (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Guatemala (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Guayaquil (-05) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Guyana (-04) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Halifax (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Havana (CST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Hermosillo (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Indiana/Indianapolis (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Indiana/Knox (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Indiana/Marengo (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Indiana/Petersburg (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Indiana/Tell City (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Indiana/Vevay (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Indiana/Vincennes (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Indiana/Winamac (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Inuvik (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Iqaluit (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Jamaica (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Juneau (AKST) | Dec 21 2021 19:53:38 | GMT -09:00 | -32400 | |
| America/Kentucky/Louisville (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Kentucky/Monticello (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Kralendijk (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/La Paz (-04) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Lima (-05) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Los Angeles (PST) | Dec 21 2021 20:53:38 | GMT -08:00 | -28800 | |
| America/Lower Princes (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Maceio (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Managua (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Manaus (-04) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Marigot (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Martinique (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Matamoros (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Mazatlan (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Menominee (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Merida (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Metlakatla (AKST) | Dec 21 2021 19:53:38 | GMT -09:00 | -32400 | |
| America/Mexico City (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Miquelon (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Moncton (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Monterrey (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Montevideo (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Montserrat (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Nassau (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/New York (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Nipigon (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Nome (AKST) | Dec 21 2021 19:53:38 | GMT -09:00 | -32400 | |
| America/Noronha (-02) | Dec 22 2021 02:53:38 | GMT -02:00 | -7200 | |
| America/North Dakota/Beulah (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/North Dakota/Center (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/North Dakota/New Salem (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Nuuk (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Ojinaga (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Panama (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Pangnirtung (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Paramaribo (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Phoenix (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Port-au-Prince (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Port of Spain (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Porto Velho (-04) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Puerto Rico (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Punta Arenas (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Rainy River (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Rankin Inlet (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Recife (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Regina (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Resolute (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Rio Branco (-05) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Santarem (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Santiago (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | DST | -10800 |
| America/Santo Domingo (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Sao Paulo (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| America/Scoresbysund (-01) | Dec 22 2021 03:53:38 | GMT -01:00 | -3600 | |
| America/Sitka (AKST) | Dec 21 2021 19:53:38 | GMT -09:00 | -32400 | |
| America/St Barthelemy (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/St Johns (NST) | Dec 22 2021 01:23:38 | GMT -03:30 | -12600 | |
| America/St Kitts (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/St Lucia (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/St Thomas (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/St Vincent (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Swift Current (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Tegucigalpa (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Thule (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Thunder Bay (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Tijuana (PST) | Dec 21 2021 20:53:38 | GMT -08:00 | -28800 | |
| America/Toronto (EST) | Dec 21 2021 23:53:38 | GMT -05:00 | -18000 | |
| America/Tortola (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| America/Vancouver (PST) | Dec 21 2021 20:53:38 | GMT -08:00 | -28800 | |
| America/Whitehorse (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| America/Winnipeg (CST) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| America/Yakutat (AKST) | Dec 21 2021 19:53:38 | GMT -09:00 | -32400 | |
| America/Yellowknife (MST) | Dec 21 2021 21:53:38 | GMT -07:00 | -25200 | |
| Antarctica | ||||
| Antarctica/Casey (+11) | Dec 22 2021 15:53:38 | GMT +11:00 | +39600 | |
| Antarctica/Davis (+07) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Antarctica/DumontDUrville (+10) | Dec 22 2021 14:53:38 | GMT +10:00 | +36000 | |
| Antarctica/Macquarie (AEDT) | Dec 22 2021 15:53:38 | GMT +11:00 | DST | +39600 |
| Antarctica/Mawson (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Antarctica/McMurdo (NZDT) | Dec 22 2021 17:53:38 | GMT +13:00 | DST | +46800 |
| Antarctica/Palmer (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| Antarctica/Rothera (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| Antarctica/Syowa (+03) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Antarctica/Troll (+00) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Antarctica/Vostok (+06) | Dec 22 2021 10:53:38 | GMT +06:00 | +21600 | |
| Arctic | ||||
| Arctic/Longyearbyen (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Asia | ||||
| Asia/Aden (+03) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Asia/Almaty (+06) | Dec 22 2021 10:53:38 | GMT +06:00 | +21600 | |
| Asia/Amman (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Asia/Anadyr (+12) | Dec 22 2021 16:53:38 | GMT +12:00 | +43200 | |
| Asia/Aqtau (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Asia/Aqtobe (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Asia/Ashgabat (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Asia/Atyrau (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Asia/Baghdad (+03) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Asia/Bahrain (+03) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Asia/Baku (+04) | Dec 22 2021 08:53:38 | GMT +04:00 | +14400 | |
| Asia/Bangkok (+07) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Asia/Barnaul (+07) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Asia/Beirut (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Asia/Bishkek (+06) | Dec 22 2021 10:53:38 | GMT +06:00 | +21600 | |
| Asia/Brunei (+08) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Chita (+09) | Dec 22 2021 13:53:38 | GMT +09:00 | +32400 | |
| Asia/Choibalsan (+08) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Colombo (+0530) | Dec 22 2021 10:23:38 | GMT +05:30 | +19800 | |
| Asia/Damascus (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Asia/Dhaka (+06) | Dec 22 2021 10:53:38 | GMT +06:00 | +21600 | |
| Asia/Dili (+09) | Dec 22 2021 13:53:38 | GMT +09:00 | +32400 | |
| Asia/Dubai (+04) | Dec 22 2021 08:53:38 | GMT +04:00 | +14400 | |
| Asia/Dushanbe (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Asia/Famagusta (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Asia/Gaza (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Asia/Hebron (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Asia/Ho Chi Minh (+07) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Asia/Hong Kong (HKT) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Hovd (+07) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Asia/Irkutsk (+08) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Jakarta (WIB) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Asia/Jayapura (WIT) | Dec 22 2021 13:53:38 | GMT +09:00 | +32400 | |
| Asia/Jerusalem (IST) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Asia/Kabul (+0430) | Dec 22 2021 09:23:38 | GMT +04:30 | +16200 | |
| Asia/Kamchatka (+12) | Dec 22 2021 16:53:38 | GMT +12:00 | +43200 | |
| Asia/Karachi (PKT) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Asia/Kathmandu (+0545) | Dec 22 2021 10:38:38 | GMT +05:45 | +20700 | |
| Asia/Khandyga (+09) | Dec 22 2021 13:53:38 | GMT +09:00 | +32400 | |
| Asia/Kolkata (IST) | Dec 22 2021 10:23:38 | GMT +05:30 | +19800 | |
| Asia/Krasnoyarsk (+07) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Asia/Kuala Lumpur (+08) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Kuching (+08) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Kuwait (+03) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Asia/Macau (CST) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Magadan (+11) | Dec 22 2021 15:53:38 | GMT +11:00 | +39600 | |
| Asia/Makassar (WITA) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Manila (PST) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Muscat (+04) | Dec 22 2021 08:53:38 | GMT +04:00 | +14400 | |
| Asia/Nicosia (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Asia/Novokuznetsk (+07) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Asia/Novosibirsk (+07) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Asia/Omsk (+06) | Dec 22 2021 10:53:38 | GMT +06:00 | +21600 | |
| Asia/Oral (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Asia/Phnom Penh (+07) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Asia/Pontianak (WIB) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Asia/Pyongyang (KST) | Dec 22 2021 13:53:38 | GMT +09:00 | +32400 | |
| Asia/Qatar (+03) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Asia/Qostanay (+06) | Dec 22 2021 10:53:38 | GMT +06:00 | +21600 | |
| Asia/Qyzylorda (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Asia/Riyadh (+03) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Asia/Sakhalin (+11) | Dec 22 2021 15:53:38 | GMT +11:00 | +39600 | |
| Asia/Samarkand (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Asia/Seoul (KST) | Dec 22 2021 13:53:38 | GMT +09:00 | +32400 | |
| Asia/Shanghai (CST) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Singapore (+08) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Srednekolymsk (+11) | Dec 22 2021 15:53:38 | GMT +11:00 | +39600 | |
| Asia/Taipei (CST) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Tashkent (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Asia/Tbilisi (+04) | Dec 22 2021 08:53:38 | GMT +04:00 | +14400 | |
| Asia/Tehran (+0330) | Dec 22 2021 08:23:38 | GMT +03:30 | +12600 | |
| Asia/Thimphu (+06) | Dec 22 2021 10:53:38 | GMT +06:00 | +21600 | |
| Asia/Tokyo (JST) | Dec 22 2021 13:53:38 | GMT +09:00 | +32400 | |
| Asia/Tomsk (+07) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Asia/Ulaanbaatar (+08) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Asia/Urumqi (+06) | Dec 22 2021 10:53:38 | GMT +06:00 | +21600 | |
| Asia/Ust-Nera (+10) | Dec 22 2021 14:53:38 | GMT +10:00 | +36000 | |
| Asia/Vientiane (+07) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Asia/Vladivostok (+10) | Dec 22 2021 14:53:38 | GMT +10:00 | +36000 | |
| Asia/Yakutsk (+09) | Dec 22 2021 13:53:38 | GMT +09:00 | +32400 | |
| Asia/Yangon (+0630) | Dec 22 2021 11:23:38 | GMT +06:30 | +23400 | |
| Asia/Yekaterinburg (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Asia/Yerevan (+04) | Dec 22 2021 08:53:38 | GMT +04:00 | +14400 | |
| Atlantic | ||||
| Atlantic/Azores (-01) | Dec 22 2021 03:53:38 | GMT -01:00 | -3600 | |
| Atlantic/Bermuda (AST) | Dec 22 2021 00:53:38 | GMT -04:00 | -14400 | |
| Atlantic/Canary (WET) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Atlantic/Cape Verde (-01) | Dec 22 2021 03:53:38 | GMT -01:00 | -3600 | |
| Atlantic/Faroe (WET) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Atlantic/Madeira (WET) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Atlantic/Reykjavik (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Atlantic/South Georgia (-02) | Dec 22 2021 02:53:38 | GMT -02:00 | -7200 | |
| Atlantic/St Helena (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Atlantic/Stanley (-03) | Dec 22 2021 01:53:38 | GMT -03:00 | -10800 | |
| Australia | ||||
| Australia/Adelaide (ACDT) | Dec 22 2021 15:23:38 | GMT +10:30 | DST | +37800 |
| Australia/Brisbane (AEST) | Dec 22 2021 14:53:38 | GMT +10:00 | +36000 | |
| Australia/Broken Hill (ACDT) | Dec 22 2021 15:23:38 | GMT +10:30 | DST | +37800 |
| Australia/Darwin (ACST) | Dec 22 2021 14:23:38 | GMT +09:30 | +34200 | |
| Australia/Eucla (+0845) | Dec 22 2021 13:38:38 | GMT +08:45 | +31500 | |
| Australia/Hobart (AEDT) | Dec 22 2021 15:53:38 | GMT +11:00 | DST | +39600 |
| Australia/Lindeman (AEST) | Dec 22 2021 14:53:38 | GMT +10:00 | +36000 | |
| Australia/Lord Howe (+11) | Dec 22 2021 15:53:38 | GMT +11:00 | DST | +39600 |
| Australia/Melbourne (AEDT) | Dec 22 2021 15:53:38 | GMT +11:00 | DST | +39600 |
| Australia/Perth (AWST) | Dec 22 2021 12:53:38 | GMT +08:00 | +28800 | |
| Australia/Sydney (AEDT) | Dec 22 2021 15:53:38 | GMT +11:00 | DST | +39600 |
| Europe | ||||
| Europe/Amsterdam (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Andorra (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Astrakhan (+04) | Dec 22 2021 08:53:38 | GMT +04:00 | +14400 | |
| Europe/Athens (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Belgrade (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Berlin (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Bratislava (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Brussels (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Bucharest (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Budapest (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Busingen (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Chisinau (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Copenhagen (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Dublin (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | DST | 0 |
| Europe/Gibraltar (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Guernsey (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Europe/Helsinki (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Isle of Man (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Europe/Istanbul (+03) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Europe/Jersey (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Europe/Kaliningrad (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Kirov (+03) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Europe/Kyiv (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Lisbon (WET) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Europe/Ljubljana (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/London (GMT) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
| Europe/Luxembourg (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Madrid (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Malta (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Mariehamn (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Minsk (+03) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Europe/Monaco (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Moscow (MSK) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Europe/Oslo (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Paris (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Podgorica (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Prague (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Riga (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Rome (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Samara (+04) | Dec 22 2021 08:53:38 | GMT +04:00 | +14400 | |
| Europe/San Marino (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Sarajevo (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Saratov (+04) | Dec 22 2021 08:53:38 | GMT +04:00 | +14400 | |
| Europe/Simferopol (MSK) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Europe/Skopje (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Sofia (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Stockholm (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Tallinn (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Tirane (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Ulyanovsk (+04) | Dec 22 2021 08:53:38 | GMT +04:00 | +14400 | |
| Europe/Uzhgorod (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Vaduz (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Vatican (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Vienna (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Vilnius (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Volgograd (+03) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Europe/Warsaw (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Zagreb (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Europe/Zaporozhye (EET) | Dec 22 2021 06:53:38 | GMT +02:00 | +7200 | |
| Europe/Zurich (CET) | Dec 22 2021 05:53:38 | GMT +01:00 | +3600 | |
| Indian | ||||
| Indian/Antananarivo (EAT) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Indian/Chagos (+06) | Dec 22 2021 10:53:38 | GMT +06:00 | +21600 | |
| Indian/Christmas (+07) | Dec 22 2021 11:53:38 | GMT +07:00 | +25200 | |
| Indian/Cocos (+0630) | Dec 22 2021 11:23:38 | GMT +06:30 | +23400 | |
| Indian/Comoro (EAT) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Indian/Kerguelen (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Indian/Mahe (+04) | Dec 22 2021 08:53:38 | GMT +04:00 | +14400 | |
| Indian/Maldives (+05) | Dec 22 2021 09:53:38 | GMT +05:00 | +18000 | |
| Indian/Mauritius (+04) | Dec 22 2021 08:53:38 | GMT +04:00 | +14400 | |
| Indian/Mayotte (EAT) | Dec 22 2021 07:53:38 | GMT +03:00 | +10800 | |
| Indian/Reunion (+04) | Dec 22 2021 08:53:38 | GMT +04:00 | +14400 | |
| Pacific | ||||
| Pacific/Apia (+13) | Dec 22 2021 17:53:38 | GMT +13:00 | +46800 | |
| Pacific/Auckland (NZDT) | Dec 22 2021 17:53:38 | GMT +13:00 | DST | +46800 |
| Pacific/Bougainville (+11) | Dec 22 2021 15:53:38 | GMT +11:00 | +39600 | |
| Pacific/Chatham (+1345) | Dec 22 2021 18:38:38 | GMT +13:45 | DST | +49500 |
| Pacific/Chuuk (+10) | Dec 22 2021 14:53:38 | GMT +10:00 | +36000 | |
| Pacific/Easter (-05) | Dec 21 2021 23:53:38 | GMT -05:00 | DST | -18000 |
| Pacific/Efate (+11) | Dec 22 2021 15:53:38 | GMT +11:00 | +39600 | |
| Pacific/Fakaofo (+13) | Dec 22 2021 17:53:38 | GMT +13:00 | +46800 | |
| Pacific/Fiji (+12) | Dec 22 2021 16:53:38 | GMT +12:00 | +43200 | |
| Pacific/Funafuti (+12) | Dec 22 2021 16:53:38 | GMT +12:00 | +43200 | |
| Pacific/Galapagos (-06) | Dec 21 2021 22:53:38 | GMT -06:00 | -21600 | |
| Pacific/Gambier (-09) | Dec 21 2021 19:53:38 | GMT -09:00 | -32400 | |
| Pacific/Guadalcanal (+11) | Dec 22 2021 15:53:38 | GMT +11:00 | +39600 | |
| Pacific/Guam (ChST) | Dec 22 2021 14:53:38 | GMT +10:00 | +36000 | |
| Pacific/Honolulu (HST) | Dec 21 2021 18:53:38 | GMT -10:00 | -36000 | |
| Pacific/Kanton (+13) | Dec 22 2021 17:53:38 | GMT +13:00 | +46800 | |
| Pacific/Kiritimati (+14) | Dec 22 2021 18:53:38 | GMT +14:00 | +50400 | |
| Pacific/Kosrae (+11) | Dec 22 2021 15:53:38 | GMT +11:00 | +39600 | |
| Pacific/Kwajalein (+12) | Dec 22 2021 16:53:38 | GMT +12:00 | +43200 | |
| Pacific/Majuro (+12) | Dec 22 2021 16:53:38 | GMT +12:00 | +43200 | |
| Pacific/Marquesas (-0930) | Dec 21 2021 19:23:38 | GMT -09:30 | -34200 | |
| Pacific/Midway (SST) | Dec 21 2021 17:53:38 | GMT -11:00 | -39600 | |
| Pacific/Nauru (+12) | Dec 22 2021 16:53:38 | GMT +12:00 | +43200 | |
| Pacific/Niue (-11) | Dec 21 2021 17:53:38 | GMT -11:00 | -39600 | |
| Pacific/Norfolk (+12) | Dec 22 2021 16:53:38 | GMT +12:00 | DST | +43200 |
| Pacific/Noumea (+11) | Dec 22 2021 15:53:38 | GMT +11:00 | +39600 | |
| Pacific/Pago Pago (SST) | Dec 21 2021 17:53:38 | GMT -11:00 | -39600 | |
| Pacific/Palau (+09) | Dec 22 2021 13:53:38 | GMT +09:00 | +32400 | |
| Pacific/Pitcairn (-08) | Dec 21 2021 20:53:38 | GMT -08:00 | -28800 | |
| Pacific/Pohnpei (+11) | Dec 22 2021 15:53:38 | GMT +11:00 | +39600 | |
| Pacific/Port Moresby (+10) | Dec 22 2021 14:53:38 | GMT +10:00 | +36000 | |
| Pacific/Rarotonga (-10) | Dec 21 2021 18:53:38 | GMT -10:00 | -36000 | |
| Pacific/Saipan (ChST) | Dec 22 2021 14:53:38 | GMT +10:00 | +36000 | |
| Pacific/Tahiti (-10) | Dec 21 2021 18:53:38 | GMT -10:00 | -36000 | |
| Pacific/Tarawa (+12) | Dec 22 2021 16:53:38 | GMT +12:00 | +43200 | |
| Pacific/Tongatapu (+13) | Dec 22 2021 17:53:38 | GMT +13:00 | +46800 | |
| Pacific/Wake (+12) | Dec 22 2021 16:53:38 | GMT +12:00 | +43200 | |
| Pacific/Wallis (+12) | Dec 22 2021 16:53:38 | GMT +12:00 | +43200 | |
| UTC (GMT) | ||||
| UTC (UTC) | Dec 22 2021 04:53:38 | GMT +00:00 | 0 | |
Be careful: This script cannot handle dates far in the future/past! Current timezones/daylight saving rules are used for all dates.
Daylight Saving Times (DST)
To convert from normal/standard time to daylight saving time add 1 hour ( or +3600 seconds ).
For example: Eastern Standard Time = GMT-5, add 1 hour: Eastern Daylight Time = GMT-4