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 (1640206293)
1640206293 converts to Wednesday December 22, 2021 14:51:33 (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 1640206293 (Dec 22 2021 20:51:33 UTC/GMT).
| Region (time zone) | Converted timestamp 1640206293 |
Relative to UTC/ |
Date in DST |
Offset In seconds |
|---|---|---|---|---|
| Africa | ||||
| Africa/Abidjan (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Accra (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Addis Ababa (EAT) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Africa/Algiers (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Asmara (EAT) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Africa/Bamako (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Bangui (WAT) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Banjul (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Bissau (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Blantyre (CAT) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Brazzaville (WAT) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Bujumbura (CAT) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Cairo (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Casablanca (+01) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Ceuta (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Conakry (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Dakar (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Dar es Salaam (EAT) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Africa/Djibouti (EAT) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Africa/Douala (WAT) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/El Aaiun (+01) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Freetown (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Gaborone (CAT) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Harare (CAT) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Johannesburg (SAST) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Juba (CAT) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Kampala (EAT) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Africa/Khartoum (CAT) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Kigali (CAT) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Kinshasa (WAT) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Lagos (WAT) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Libreville (WAT) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Lome (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Luanda (WAT) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Lubumbashi (CAT) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Lusaka (CAT) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Malabo (WAT) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Maputo (CAT) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Maseru (SAST) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Mbabane (SAST) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Mogadishu (EAT) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Africa/Monrovia (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Nairobi (EAT) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Africa/Ndjamena (WAT) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Niamey (WAT) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Nouakchott (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Ouagadougou (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Porto-Novo (WAT) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Sao Tome (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Africa/Tripoli (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Africa/Tunis (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Africa/Windhoek (CAT) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| America | ||||
| America/Adak (HST) | Dec 22 2021 10:51:33 | GMT -10:00 | -36000 | |
| America/Anchorage (AKST) | Dec 22 2021 11:51:33 | GMT -09:00 | -32400 | |
| America/Anguilla (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Antigua (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Araguaina (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Argentina/Buenos Aires (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Argentina/Catamarca (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Argentina/Cordoba (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Argentina/Jujuy (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Argentina/La Rioja (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Argentina/Mendoza (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Argentina/Rio Gallegos (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Argentina/Salta (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Argentina/San Juan (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Argentina/San Luis (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Argentina/Tucuman (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Argentina/Ushuaia (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Aruba (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Asuncion (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | DST | -10800 |
| America/Atikokan (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Bahia (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Bahia Banderas (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Barbados (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Belem (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Belize (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Blanc-Sablon (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Boa Vista (-04) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Bogota (-05) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Boise (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Cambridge Bay (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Campo Grande (-04) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Cancun (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Caracas (-04) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Cayenne (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Cayman (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Chicago (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Chihuahua (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Costa Rica (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Creston (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Cuiaba (-04) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Curacao (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Danmarkshavn (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| America/Dawson (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Dawson Creek (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Denver (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Detroit (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Dominica (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Edmonton (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Eirunepe (-05) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/El Salvador (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Fort Nelson (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Fortaleza (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Glace Bay (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Goose Bay (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Grand Turk (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Grenada (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Guadeloupe (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Guatemala (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Guayaquil (-05) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Guyana (-04) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Halifax (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Havana (CST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Hermosillo (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Indiana/Indianapolis (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Indiana/Knox (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Indiana/Marengo (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Indiana/Petersburg (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Indiana/Tell City (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Indiana/Vevay (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Indiana/Vincennes (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Indiana/Winamac (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Inuvik (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Iqaluit (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Jamaica (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Juneau (AKST) | Dec 22 2021 11:51:33 | GMT -09:00 | -32400 | |
| America/Kentucky/Louisville (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Kentucky/Monticello (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Kralendijk (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/La Paz (-04) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Lima (-05) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Los Angeles (PST) | Dec 22 2021 12:51:33 | GMT -08:00 | -28800 | |
| America/Lower Princes (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Maceio (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Managua (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Manaus (-04) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Marigot (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Martinique (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Matamoros (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Mazatlan (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Menominee (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Merida (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Metlakatla (AKST) | Dec 22 2021 11:51:33 | GMT -09:00 | -32400 | |
| America/Mexico City (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Miquelon (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Moncton (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Monterrey (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Montevideo (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Montserrat (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Nassau (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/New York (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Nipigon (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Nome (AKST) | Dec 22 2021 11:51:33 | GMT -09:00 | -32400 | |
| America/Noronha (-02) | Dec 22 2021 18:51:33 | GMT -02:00 | -7200 | |
| America/North Dakota/Beulah (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/North Dakota/Center (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/North Dakota/New Salem (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Nuuk (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Ojinaga (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Panama (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Pangnirtung (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Paramaribo (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Phoenix (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Port-au-Prince (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Port of Spain (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Porto Velho (-04) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Puerto Rico (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Punta Arenas (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Rainy River (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Rankin Inlet (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Recife (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Regina (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Resolute (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Rio Branco (-05) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Santarem (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Santiago (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | DST | -10800 |
| America/Santo Domingo (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Sao Paulo (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| America/Scoresbysund (-01) | Dec 22 2021 19:51:33 | GMT -01:00 | -3600 | |
| America/Sitka (AKST) | Dec 22 2021 11:51:33 | GMT -09:00 | -32400 | |
| America/St Barthelemy (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/St Johns (NST) | Dec 22 2021 17:21:33 | GMT -03:30 | -12600 | |
| America/St Kitts (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/St Lucia (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/St Thomas (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/St Vincent (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Swift Current (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Tegucigalpa (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Thule (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Thunder Bay (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Tijuana (PST) | Dec 22 2021 12:51:33 | GMT -08:00 | -28800 | |
| America/Toronto (EST) | Dec 22 2021 15:51:33 | GMT -05:00 | -18000 | |
| America/Tortola (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| America/Vancouver (PST) | Dec 22 2021 12:51:33 | GMT -08:00 | -28800 | |
| America/Whitehorse (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| America/Winnipeg (CST) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| America/Yakutat (AKST) | Dec 22 2021 11:51:33 | GMT -09:00 | -32400 | |
| America/Yellowknife (MST) | Dec 22 2021 13:51:33 | GMT -07:00 | -25200 | |
| Antarctica | ||||
| Antarctica/Casey (+11) | Dec 23 2021 07:51:33 | GMT +11:00 | +39600 | |
| Antarctica/Davis (+07) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Antarctica/DumontDUrville (+10) | Dec 23 2021 06:51:33 | GMT +10:00 | +36000 | |
| Antarctica/Macquarie (AEDT) | Dec 23 2021 07:51:33 | GMT +11:00 | DST | +39600 |
| Antarctica/Mawson (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Antarctica/McMurdo (NZDT) | Dec 23 2021 09:51:33 | GMT +13:00 | DST | +46800 |
| Antarctica/Palmer (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| Antarctica/Rothera (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| Antarctica/Syowa (+03) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Antarctica/Troll (+00) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Antarctica/Vostok (+06) | Dec 23 2021 02:51:33 | GMT +06:00 | +21600 | |
| Arctic | ||||
| Arctic/Longyearbyen (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Asia | ||||
| Asia/Aden (+03) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Asia/Almaty (+06) | Dec 23 2021 02:51:33 | GMT +06:00 | +21600 | |
| Asia/Amman (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Asia/Anadyr (+12) | Dec 23 2021 08:51:33 | GMT +12:00 | +43200 | |
| Asia/Aqtau (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Asia/Aqtobe (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Asia/Ashgabat (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Asia/Atyrau (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Asia/Baghdad (+03) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Asia/Bahrain (+03) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Asia/Baku (+04) | Dec 23 2021 00:51:33 | GMT +04:00 | +14400 | |
| Asia/Bangkok (+07) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Asia/Barnaul (+07) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Asia/Beirut (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Asia/Bishkek (+06) | Dec 23 2021 02:51:33 | GMT +06:00 | +21600 | |
| Asia/Brunei (+08) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Chita (+09) | Dec 23 2021 05:51:33 | GMT +09:00 | +32400 | |
| Asia/Choibalsan (+08) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Colombo (+0530) | Dec 23 2021 02:21:33 | GMT +05:30 | +19800 | |
| Asia/Damascus (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Asia/Dhaka (+06) | Dec 23 2021 02:51:33 | GMT +06:00 | +21600 | |
| Asia/Dili (+09) | Dec 23 2021 05:51:33 | GMT +09:00 | +32400 | |
| Asia/Dubai (+04) | Dec 23 2021 00:51:33 | GMT +04:00 | +14400 | |
| Asia/Dushanbe (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Asia/Famagusta (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Asia/Gaza (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Asia/Hebron (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Asia/Ho Chi Minh (+07) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Asia/Hong Kong (HKT) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Hovd (+07) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Asia/Irkutsk (+08) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Jakarta (WIB) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Asia/Jayapura (WIT) | Dec 23 2021 05:51:33 | GMT +09:00 | +32400 | |
| Asia/Jerusalem (IST) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Asia/Kabul (+0430) | Dec 23 2021 01:21:33 | GMT +04:30 | +16200 | |
| Asia/Kamchatka (+12) | Dec 23 2021 08:51:33 | GMT +12:00 | +43200 | |
| Asia/Karachi (PKT) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Asia/Kathmandu (+0545) | Dec 23 2021 02:36:33 | GMT +05:45 | +20700 | |
| Asia/Khandyga (+09) | Dec 23 2021 05:51:33 | GMT +09:00 | +32400 | |
| Asia/Kolkata (IST) | Dec 23 2021 02:21:33 | GMT +05:30 | +19800 | |
| Asia/Krasnoyarsk (+07) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Asia/Kuala Lumpur (+08) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Kuching (+08) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Kuwait (+03) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Asia/Macau (CST) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Magadan (+11) | Dec 23 2021 07:51:33 | GMT +11:00 | +39600 | |
| Asia/Makassar (WITA) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Manila (PST) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Muscat (+04) | Dec 23 2021 00:51:33 | GMT +04:00 | +14400 | |
| Asia/Nicosia (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Asia/Novokuznetsk (+07) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Asia/Novosibirsk (+07) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Asia/Omsk (+06) | Dec 23 2021 02:51:33 | GMT +06:00 | +21600 | |
| Asia/Oral (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Asia/Phnom Penh (+07) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Asia/Pontianak (WIB) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Asia/Pyongyang (KST) | Dec 23 2021 05:51:33 | GMT +09:00 | +32400 | |
| Asia/Qatar (+03) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Asia/Qostanay (+06) | Dec 23 2021 02:51:33 | GMT +06:00 | +21600 | |
| Asia/Qyzylorda (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Asia/Riyadh (+03) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Asia/Sakhalin (+11) | Dec 23 2021 07:51:33 | GMT +11:00 | +39600 | |
| Asia/Samarkand (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Asia/Seoul (KST) | Dec 23 2021 05:51:33 | GMT +09:00 | +32400 | |
| Asia/Shanghai (CST) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Singapore (+08) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Srednekolymsk (+11) | Dec 23 2021 07:51:33 | GMT +11:00 | +39600 | |
| Asia/Taipei (CST) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Tashkent (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Asia/Tbilisi (+04) | Dec 23 2021 00:51:33 | GMT +04:00 | +14400 | |
| Asia/Tehran (+0330) | Dec 23 2021 00:21:33 | GMT +03:30 | +12600 | |
| Asia/Thimphu (+06) | Dec 23 2021 02:51:33 | GMT +06:00 | +21600 | |
| Asia/Tokyo (JST) | Dec 23 2021 05:51:33 | GMT +09:00 | +32400 | |
| Asia/Tomsk (+07) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Asia/Ulaanbaatar (+08) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Asia/Urumqi (+06) | Dec 23 2021 02:51:33 | GMT +06:00 | +21600 | |
| Asia/Ust-Nera (+10) | Dec 23 2021 06:51:33 | GMT +10:00 | +36000 | |
| Asia/Vientiane (+07) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Asia/Vladivostok (+10) | Dec 23 2021 06:51:33 | GMT +10:00 | +36000 | |
| Asia/Yakutsk (+09) | Dec 23 2021 05:51:33 | GMT +09:00 | +32400 | |
| Asia/Yangon (+0630) | Dec 23 2021 03:21:33 | GMT +06:30 | +23400 | |
| Asia/Yekaterinburg (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Asia/Yerevan (+04) | Dec 23 2021 00:51:33 | GMT +04:00 | +14400 | |
| Atlantic | ||||
| Atlantic/Azores (-01) | Dec 22 2021 19:51:33 | GMT -01:00 | -3600 | |
| Atlantic/Bermuda (AST) | Dec 22 2021 16:51:33 | GMT -04:00 | -14400 | |
| Atlantic/Canary (WET) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Atlantic/Cape Verde (-01) | Dec 22 2021 19:51:33 | GMT -01:00 | -3600 | |
| Atlantic/Faroe (WET) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Atlantic/Madeira (WET) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Atlantic/Reykjavik (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Atlantic/South Georgia (-02) | Dec 22 2021 18:51:33 | GMT -02:00 | -7200 | |
| Atlantic/St Helena (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Atlantic/Stanley (-03) | Dec 22 2021 17:51:33 | GMT -03:00 | -10800 | |
| Australia | ||||
| Australia/Adelaide (ACDT) | Dec 23 2021 07:21:33 | GMT +10:30 | DST | +37800 |
| Australia/Brisbane (AEST) | Dec 23 2021 06:51:33 | GMT +10:00 | +36000 | |
| Australia/Broken Hill (ACDT) | Dec 23 2021 07:21:33 | GMT +10:30 | DST | +37800 |
| Australia/Darwin (ACST) | Dec 23 2021 06:21:33 | GMT +09:30 | +34200 | |
| Australia/Eucla (+0845) | Dec 23 2021 05:36:33 | GMT +08:45 | +31500 | |
| Australia/Hobart (AEDT) | Dec 23 2021 07:51:33 | GMT +11:00 | DST | +39600 |
| Australia/Lindeman (AEST) | Dec 23 2021 06:51:33 | GMT +10:00 | +36000 | |
| Australia/Lord Howe (+11) | Dec 23 2021 07:51:33 | GMT +11:00 | DST | +39600 |
| Australia/Melbourne (AEDT) | Dec 23 2021 07:51:33 | GMT +11:00 | DST | +39600 |
| Australia/Perth (AWST) | Dec 23 2021 04:51:33 | GMT +08:00 | +28800 | |
| Australia/Sydney (AEDT) | Dec 23 2021 07:51:33 | GMT +11:00 | DST | +39600 |
| Europe | ||||
| Europe/Amsterdam (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Andorra (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Astrakhan (+04) | Dec 23 2021 00:51:33 | GMT +04:00 | +14400 | |
| Europe/Athens (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Belgrade (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Berlin (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Bratislava (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Brussels (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Bucharest (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Budapest (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Busingen (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Chisinau (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Copenhagen (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Dublin (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | DST | 0 |
| Europe/Gibraltar (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Guernsey (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Europe/Helsinki (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Isle of Man (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Europe/Istanbul (+03) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Europe/Jersey (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Europe/Kaliningrad (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Kirov (+03) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Europe/Kyiv (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Lisbon (WET) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Europe/Ljubljana (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/London (GMT) | Dec 22 2021 20:51:33 | GMT +00:00 | 0 | |
| Europe/Luxembourg (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Madrid (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Malta (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Mariehamn (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Minsk (+03) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Europe/Monaco (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Moscow (MSK) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Europe/Oslo (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Paris (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Podgorica (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Prague (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Riga (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Rome (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Samara (+04) | Dec 23 2021 00:51:33 | GMT +04:00 | +14400 | |
| Europe/San Marino (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Sarajevo (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Saratov (+04) | Dec 23 2021 00:51:33 | GMT +04:00 | +14400 | |
| Europe/Simferopol (MSK) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Europe/Skopje (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Sofia (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Stockholm (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Tallinn (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Tirane (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Ulyanovsk (+04) | Dec 23 2021 00:51:33 | GMT +04:00 | +14400 | |
| Europe/Uzhgorod (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Vaduz (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Vatican (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Vienna (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Vilnius (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Volgograd (+03) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Europe/Warsaw (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Zagreb (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Europe/Zaporozhye (EET) | Dec 22 2021 22:51:33 | GMT +02:00 | +7200 | |
| Europe/Zurich (CET) | Dec 22 2021 21:51:33 | GMT +01:00 | +3600 | |
| Indian | ||||
| Indian/Antananarivo (EAT) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Indian/Chagos (+06) | Dec 23 2021 02:51:33 | GMT +06:00 | +21600 | |
| Indian/Christmas (+07) | Dec 23 2021 03:51:33 | GMT +07:00 | +25200 | |
| Indian/Cocos (+0630) | Dec 23 2021 03:21:33 | GMT +06:30 | +23400 | |
| Indian/Comoro (EAT) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Indian/Kerguelen (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Indian/Mahe (+04) | Dec 23 2021 00:51:33 | GMT +04:00 | +14400 | |
| Indian/Maldives (+05) | Dec 23 2021 01:51:33 | GMT +05:00 | +18000 | |
| Indian/Mauritius (+04) | Dec 23 2021 00:51:33 | GMT +04:00 | +14400 | |
| Indian/Mayotte (EAT) | Dec 22 2021 23:51:33 | GMT +03:00 | +10800 | |
| Indian/Reunion (+04) | Dec 23 2021 00:51:33 | GMT +04:00 | +14400 | |
| Pacific | ||||
| Pacific/Apia (+13) | Dec 23 2021 09:51:33 | GMT +13:00 | +46800 | |
| Pacific/Auckland (NZDT) | Dec 23 2021 09:51:33 | GMT +13:00 | DST | +46800 |
| Pacific/Bougainville (+11) | Dec 23 2021 07:51:33 | GMT +11:00 | +39600 | |
| Pacific/Chatham (+1345) | Dec 23 2021 10:36:33 | GMT +13:45 | DST | +49500 |
| Pacific/Chuuk (+10) | Dec 23 2021 06:51:33 | GMT +10:00 | +36000 | |
| Pacific/Easter (-05) | Dec 22 2021 15:51:33 | GMT -05:00 | DST | -18000 |
| Pacific/Efate (+11) | Dec 23 2021 07:51:33 | GMT +11:00 | +39600 | |
| Pacific/Fakaofo (+13) | Dec 23 2021 09:51:33 | GMT +13:00 | +46800 | |
| Pacific/Fiji (+12) | Dec 23 2021 08:51:33 | GMT +12:00 | +43200 | |
| Pacific/Funafuti (+12) | Dec 23 2021 08:51:33 | GMT +12:00 | +43200 | |
| Pacific/Galapagos (-06) | Dec 22 2021 14:51:33 | GMT -06:00 | -21600 | |
| Pacific/Gambier (-09) | Dec 22 2021 11:51:33 | GMT -09:00 | -32400 | |
| Pacific/Guadalcanal (+11) | Dec 23 2021 07:51:33 | GMT +11:00 | +39600 | |
| Pacific/Guam (ChST) | Dec 23 2021 06:51:33 | GMT +10:00 | +36000 | |
| Pacific/Honolulu (HST) | Dec 22 2021 10:51:33 | GMT -10:00 | -36000 | |
| Pacific/Kanton (+13) | Dec 23 2021 09:51:33 | GMT +13:00 | +46800 | |
| Pacific/Kiritimati (+14) | Dec 23 2021 10:51:33 | GMT +14:00 | +50400 | |
| Pacific/Kosrae (+11) | Dec 23 2021 07:51:33 | GMT +11:00 | +39600 | |
| Pacific/Kwajalein (+12) | Dec 23 2021 08:51:33 | GMT +12:00 | +43200 | |
| Pacific/Majuro (+12) | Dec 23 2021 08:51:33 | GMT +12:00 | +43200 | |
| Pacific/Marquesas (-0930) | Dec 22 2021 11:21:33 | GMT -09:30 | -34200 | |
| Pacific/Midway (SST) | Dec 22 2021 09:51:33 | GMT -11:00 | -39600 | |
| Pacific/Nauru (+12) | Dec 23 2021 08:51:33 | GMT +12:00 | +43200 | |
| Pacific/Niue (-11) | Dec 22 2021 09:51:33 | GMT -11:00 | -39600 | |
| Pacific/Norfolk (+12) | Dec 23 2021 08:51:33 | GMT +12:00 | DST | +43200 |
| Pacific/Noumea (+11) | Dec 23 2021 07:51:33 | GMT +11:00 | +39600 | |
| Pacific/Pago Pago (SST) | Dec 22 2021 09:51:33 | GMT -11:00 | -39600 | |
| Pacific/Palau (+09) | Dec 23 2021 05:51:33 | GMT +09:00 | +32400 | |
| Pacific/Pitcairn (-08) | Dec 22 2021 12:51:33 | GMT -08:00 | -28800 | |
| Pacific/Pohnpei (+11) | Dec 23 2021 07:51:33 | GMT +11:00 | +39600 | |
| Pacific/Port Moresby (+10) | Dec 23 2021 06:51:33 | GMT +10:00 | +36000 | |
| Pacific/Rarotonga (-10) | Dec 22 2021 10:51:33 | GMT -10:00 | -36000 | |
| Pacific/Saipan (ChST) | Dec 23 2021 06:51:33 | GMT +10:00 | +36000 | |
| Pacific/Tahiti (-10) | Dec 22 2021 10:51:33 | GMT -10:00 | -36000 | |
| Pacific/Tarawa (+12) | Dec 23 2021 08:51:33 | GMT +12:00 | +43200 | |
| Pacific/Tongatapu (+13) | Dec 23 2021 09:51:33 | GMT +13:00 | +46800 | |
| Pacific/Wake (+12) | Dec 23 2021 08:51:33 | GMT +12:00 | +43200 | |
| Pacific/Wallis (+12) | Dec 23 2021 08:51:33 | GMT +12:00 | +43200 | |
| UTC (GMT) | ||||
| UTC (UTC) | Dec 22 2021 20:51:33 | 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