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
Time zones
The 'Converted timestamp' column shows the time for Unix timestamp 1531785600 (Jul 17 2018 00:00:00 UTC/GMT).
| Region (time zone) | Converted timestamp 1531785600 |
Relative to UTC/ |
Date in DST |
Offset In seconds |
|---|---|---|---|---|
| Africa | ||||
| Africa/Abidjan (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Africa/Accra (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Africa/Addis Ababa (EAT) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Africa/Algiers (CET) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Asmara (EAT) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Africa/Bamako (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Africa/Bangui (WAT) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Banjul (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Africa/Bissau (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Africa/Blantyre (CAT) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Brazzaville (WAT) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Bujumbura (CAT) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Cairo (EET) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Casablanca (+01) | Jul 17 2018 01:00:00 | GMT +01:00 | DST | +3600 |
| Africa/Ceuta (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Africa/Conakry (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Africa/Dakar (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Africa/Dar es Salaam (EAT) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Africa/Djibouti (EAT) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Africa/Douala (WAT) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/El Aaiun (+01) | Jul 17 2018 01:00:00 | GMT +01:00 | DST | +3600 |
| Africa/Freetown (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Africa/Gaborone (CAT) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Harare (CAT) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Johannesburg (SAST) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Juba (EAT) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Africa/Kampala (EAT) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Africa/Khartoum (CAT) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Kigali (CAT) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Kinshasa (WAT) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Lagos (WAT) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Libreville (WAT) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Lome (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Africa/Luanda (WAT) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Lubumbashi (CAT) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Lusaka (CAT) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Malabo (WAT) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Maputo (CAT) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Maseru (SAST) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Mbabane (SAST) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Mogadishu (EAT) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Africa/Monrovia (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Africa/Nairobi (EAT) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Africa/Ndjamena (WAT) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Niamey (WAT) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Nouakchott (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Africa/Ouagadougou (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Africa/Porto-Novo (WAT) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Sao Tome (WAT) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Tripoli (EET) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Africa/Tunis (CET) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Africa/Windhoek (CAT) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| America | ||||
| America/Adak (HDT) | Jul 16 2018 15:00:00 | GMT -09:00 | DST | -32400 |
| America/Anchorage (AKDT) | Jul 16 2018 16:00:00 | GMT -08:00 | DST | -28800 |
| America/Anguilla (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Antigua (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Araguaina (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Argentina/Buenos Aires (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Argentina/Catamarca (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Argentina/Cordoba (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Argentina/Jujuy (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Argentina/La Rioja (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Argentina/Mendoza (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Argentina/Rio Gallegos (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Argentina/Salta (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Argentina/San Juan (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Argentina/San Luis (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Argentina/Tucuman (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Argentina/Ushuaia (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Aruba (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Asuncion (-04) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Atikokan (EST) | Jul 16 2018 19:00:00 | GMT -05:00 | -18000 | |
| America/Bahia (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Bahia Banderas (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Barbados (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Belem (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Belize (CST) | Jul 16 2018 18:00:00 | GMT -06:00 | -21600 | |
| America/Blanc-Sablon (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Boa Vista (-04) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Bogota (-05) | Jul 16 2018 19:00:00 | GMT -05:00 | -18000 | |
| America/Boise (MDT) | Jul 16 2018 18:00:00 | GMT -06:00 | DST | -21600 |
| America/Cambridge Bay (MDT) | Jul 16 2018 18:00:00 | GMT -06:00 | DST | -21600 |
| America/Campo Grande (-04) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Cancun (EST) | Jul 16 2018 19:00:00 | GMT -05:00 | -18000 | |
| America/Caracas (-04) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Cayenne (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Cayman (EST) | Jul 16 2018 19:00:00 | GMT -05:00 | -18000 | |
| America/Chicago (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Chihuahua (MDT) | Jul 16 2018 18:00:00 | GMT -06:00 | DST | -21600 |
| America/Costa Rica (CST) | Jul 16 2018 18:00:00 | GMT -06:00 | -21600 | |
| America/Creston (MST) | Jul 16 2018 17:00:00 | GMT -07:00 | -25200 | |
| America/Cuiaba (-04) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Curacao (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Danmarkshavn (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| America/Dawson (PDT) | Jul 16 2018 17:00:00 | GMT -07:00 | DST | -25200 |
| America/Dawson Creek (MST) | Jul 16 2018 17:00:00 | GMT -07:00 | -25200 | |
| America/Denver (MDT) | Jul 16 2018 18:00:00 | GMT -06:00 | DST | -21600 |
| America/Detroit (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Dominica (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Edmonton (MDT) | Jul 16 2018 18:00:00 | GMT -06:00 | DST | -21600 |
| America/Eirunepe (-05) | Jul 16 2018 19:00:00 | GMT -05:00 | -18000 | |
| America/El Salvador (CST) | Jul 16 2018 18:00:00 | GMT -06:00 | -21600 | |
| America/Fort Nelson (MST) | Jul 16 2018 17:00:00 | GMT -07:00 | -25200 | |
| America/Fortaleza (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Glace Bay (ADT) | Jul 16 2018 21:00:00 | GMT -03:00 | DST | -10800 |
| America/Goose Bay (ADT) | Jul 16 2018 21:00:00 | GMT -03:00 | DST | -10800 |
| America/Grand Turk (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Grenada (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Guadeloupe (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Guatemala (CST) | Jul 16 2018 18:00:00 | GMT -06:00 | -21600 | |
| America/Guayaquil (-05) | Jul 16 2018 19:00:00 | GMT -05:00 | -18000 | |
| America/Guyana (-04) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Halifax (ADT) | Jul 16 2018 21:00:00 | GMT -03:00 | DST | -10800 |
| America/Havana (CDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Hermosillo (MST) | Jul 16 2018 17:00:00 | GMT -07:00 | -25200 | |
| America/Indiana/Indianapolis (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Indiana/Knox (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Indiana/Marengo (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Indiana/Petersburg (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Indiana/Tell City (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Indiana/Vevay (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Indiana/Vincennes (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Indiana/Winamac (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Inuvik (MDT) | Jul 16 2018 18:00:00 | GMT -06:00 | DST | -21600 |
| America/Iqaluit (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Jamaica (EST) | Jul 16 2018 19:00:00 | GMT -05:00 | -18000 | |
| America/Juneau (AKDT) | Jul 16 2018 16:00:00 | GMT -08:00 | DST | -28800 |
| America/Kentucky/Louisville (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Kentucky/Monticello (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Kralendijk (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/La Paz (-04) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Lima (-05) | Jul 16 2018 19:00:00 | GMT -05:00 | -18000 | |
| America/Los Angeles (PDT) | Jul 16 2018 17:00:00 | GMT -07:00 | DST | -25200 |
| America/Lower Princes (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Maceio (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Managua (CST) | Jul 16 2018 18:00:00 | GMT -06:00 | -21600 | |
| America/Manaus (-04) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Marigot (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Martinique (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Matamoros (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Mazatlan (MDT) | Jul 16 2018 18:00:00 | GMT -06:00 | DST | -21600 |
| America/Menominee (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Merida (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Metlakatla (AKDT) | Jul 16 2018 16:00:00 | GMT -08:00 | DST | -28800 |
| America/Mexico City (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Miquelon (-02) | Jul 16 2018 22:00:00 | GMT -02:00 | DST | -7200 |
| America/Moncton (ADT) | Jul 16 2018 21:00:00 | GMT -03:00 | DST | -10800 |
| America/Monterrey (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Montevideo (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Montserrat (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Nassau (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/New York (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Nome (AKDT) | Jul 16 2018 16:00:00 | GMT -08:00 | DST | -28800 |
| America/Noronha (-02) | Jul 16 2018 22:00:00 | GMT -02:00 | -7200 | |
| America/North Dakota/Beulah (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/North Dakota/Center (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/North Dakota/New Salem (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Nuuk (-02) | Jul 16 2018 22:00:00 | GMT -02:00 | DST | -7200 |
| America/Ojinaga (MDT) | Jul 16 2018 18:00:00 | GMT -06:00 | DST | -21600 |
| America/Panama (EST) | Jul 16 2018 19:00:00 | GMT -05:00 | -18000 | |
| America/Pangnirtung (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Paramaribo (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Phoenix (MST) | Jul 16 2018 17:00:00 | GMT -07:00 | -25200 | |
| America/Port-au-Prince (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Port of Spain (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Porto Velho (-04) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Puerto Rico (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Punta Arenas (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Rankin Inlet (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Recife (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Regina (CST) | Jul 16 2018 18:00:00 | GMT -06:00 | -21600 | |
| America/Resolute (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Rio Branco (-05) | Jul 16 2018 19:00:00 | GMT -05:00 | -18000 | |
| America/Santarem (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Santiago (-04) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Santo Domingo (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Sao Paulo (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| America/Scoresbysund (+00) | Jul 17 2018 00:00:00 | GMT +00:00 | DST | 0 |
| America/Sitka (AKDT) | Jul 16 2018 16:00:00 | GMT -08:00 | DST | -28800 |
| America/St Barthelemy (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/St Johns (NDT) | Jul 16 2018 21:30:00 | GMT -02:30 | DST | -9000 |
| America/St Kitts (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/St Lucia (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/St Thomas (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/St Vincent (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Swift Current (CST) | Jul 16 2018 18:00:00 | GMT -06:00 | -21600 | |
| America/Tegucigalpa (CST) | Jul 16 2018 18:00:00 | GMT -06:00 | -21600 | |
| America/Thule (ADT) | Jul 16 2018 21:00:00 | GMT -03:00 | DST | -10800 |
| America/Tijuana (PDT) | Jul 16 2018 17:00:00 | GMT -07:00 | DST | -25200 |
| America/Toronto (EDT) | Jul 16 2018 20:00:00 | GMT -04:00 | DST | -14400 |
| America/Tortola (AST) | Jul 16 2018 20:00:00 | GMT -04:00 | -14400 | |
| America/Vancouver (PDT) | Jul 16 2018 17:00:00 | GMT -07:00 | DST | -25200 |
| America/Whitehorse (PDT) | Jul 16 2018 17:00:00 | GMT -07:00 | DST | -25200 |
| America/Winnipeg (CDT) | Jul 16 2018 19:00:00 | GMT -05:00 | DST | -18000 |
| America/Yakutat (AKDT) | Jul 16 2018 16:00:00 | GMT -08:00 | DST | -28800 |
| America/Yellowknife (MDT) | Jul 16 2018 18:00:00 | GMT -06:00 | DST | -21600 |
| Antarctica | ||||
| Antarctica/Casey (+08) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Antarctica/Davis (+07) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Antarctica/DumontDUrville (+10) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Antarctica/Macquarie (AEST) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Antarctica/Mawson (+05) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Antarctica/McMurdo (NZST) | Jul 17 2018 12:00:00 | GMT +12:00 | +43200 | |
| Antarctica/Palmer (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| Antarctica/Rothera (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| Antarctica/Syowa (+03) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Antarctica/Troll (+02) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Antarctica/Vostok (+06) | Jul 17 2018 06:00:00 | GMT +06:00 | +21600 | |
| Arctic | ||||
| Arctic/Longyearbyen (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Asia | ||||
| Asia/Aden (+03) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Asia/Almaty (+06) | Jul 17 2018 06:00:00 | GMT +06:00 | +21600 | |
| Asia/Amman (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Asia/Anadyr (+12) | Jul 17 2018 12:00:00 | GMT +12:00 | +43200 | |
| Asia/Aqtau (+05) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Asia/Aqtobe (+05) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Asia/Ashgabat (+05) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Asia/Atyrau (+05) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Asia/Baghdad (+03) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Asia/Bahrain (+03) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Asia/Baku (+04) | Jul 17 2018 04:00:00 | GMT +04:00 | +14400 | |
| Asia/Bangkok (+07) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Asia/Barnaul (+07) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Asia/Beirut (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Asia/Bishkek (+06) | Jul 17 2018 06:00:00 | GMT +06:00 | +21600 | |
| Asia/Brunei (+08) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Chita (+09) | Jul 17 2018 09:00:00 | GMT +09:00 | +32400 | |
| Asia/Choibalsan (+08) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Colombo (+0530) | Jul 17 2018 05:30:00 | GMT +05:30 | +19800 | |
| Asia/Damascus (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Asia/Dhaka (+06) | Jul 17 2018 06:00:00 | GMT +06:00 | +21600 | |
| Asia/Dili (+09) | Jul 17 2018 09:00:00 | GMT +09:00 | +32400 | |
| Asia/Dubai (+04) | Jul 17 2018 04:00:00 | GMT +04:00 | +14400 | |
| Asia/Dushanbe (+05) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Asia/Famagusta (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Asia/Gaza (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Asia/Hebron (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Asia/Ho Chi Minh (+07) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Asia/Hong Kong (HKT) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Hovd (+07) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Asia/Irkutsk (+08) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Jakarta (WIB) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Asia/Jayapura (WIT) | Jul 17 2018 09:00:00 | GMT +09:00 | +32400 | |
| Asia/Jerusalem (IDT) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Asia/Kabul (+0430) | Jul 17 2018 04:30:00 | GMT +04:30 | +16200 | |
| Asia/Kamchatka (+12) | Jul 17 2018 12:00:00 | GMT +12:00 | +43200 | |
| Asia/Karachi (PKT) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Asia/Kathmandu (+0545) | Jul 17 2018 05:45:00 | GMT +05:45 | +20700 | |
| Asia/Khandyga (+09) | Jul 17 2018 09:00:00 | GMT +09:00 | +32400 | |
| Asia/Kolkata (IST) | Jul 17 2018 05:30:00 | GMT +05:30 | +19800 | |
| Asia/Krasnoyarsk (+07) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Asia/Kuala Lumpur (+08) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Kuching (+08) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Kuwait (+03) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Asia/Macau (CST) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Magadan (+11) | Jul 17 2018 11:00:00 | GMT +11:00 | +39600 | |
| Asia/Makassar (WITA) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Manila (PST) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Muscat (+04) | Jul 17 2018 04:00:00 | GMT +04:00 | +14400 | |
| Asia/Nicosia (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Asia/Novokuznetsk (+07) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Asia/Novosibirsk (+07) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Asia/Omsk (+06) | Jul 17 2018 06:00:00 | GMT +06:00 | +21600 | |
| Asia/Oral (+05) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Asia/Phnom Penh (+07) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Asia/Pontianak (WIB) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Asia/Pyongyang (KST) | Jul 17 2018 09:00:00 | GMT +09:00 | +32400 | |
| Asia/Qatar (+03) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Asia/Qostanay (+06) | Jul 17 2018 06:00:00 | GMT +06:00 | +21600 | |
| Asia/Qyzylorda (+06) | Jul 17 2018 06:00:00 | GMT +06:00 | +21600 | |
| Asia/Riyadh (+03) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Asia/Sakhalin (+11) | Jul 17 2018 11:00:00 | GMT +11:00 | +39600 | |
| Asia/Samarkand (+05) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Asia/Seoul (KST) | Jul 17 2018 09:00:00 | GMT +09:00 | +32400 | |
| Asia/Shanghai (CST) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Singapore (+08) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Srednekolymsk (+11) | Jul 17 2018 11:00:00 | GMT +11:00 | +39600 | |
| Asia/Taipei (CST) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Tashkent (+05) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Asia/Tbilisi (+04) | Jul 17 2018 04:00:00 | GMT +04:00 | +14400 | |
| Asia/Tehran (+0430) | Jul 17 2018 04:30:00 | GMT +04:30 | DST | +16200 |
| Asia/Thimphu (+06) | Jul 17 2018 06:00:00 | GMT +06:00 | +21600 | |
| Asia/Tokyo (JST) | Jul 17 2018 09:00:00 | GMT +09:00 | +32400 | |
| Asia/Tomsk (+07) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Asia/Ulaanbaatar (+08) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Asia/Urumqi (+06) | Jul 17 2018 06:00:00 | GMT +06:00 | +21600 | |
| Asia/Ust-Nera (+10) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Asia/Vientiane (+07) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Asia/Vladivostok (+10) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Asia/Yakutsk (+09) | Jul 17 2018 09:00:00 | GMT +09:00 | +32400 | |
| Asia/Yangon (+0630) | Jul 17 2018 06:30:00 | GMT +06:30 | +23400 | |
| Asia/Yekaterinburg (+05) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Asia/Yerevan (+04) | Jul 17 2018 04:00:00 | GMT +04:00 | +14400 | |
| Atlantic | ||||
| Atlantic/Azores (+00) | Jul 17 2018 00:00:00 | GMT +00:00 | DST | 0 |
| Atlantic/Bermuda (ADT) | Jul 16 2018 21:00:00 | GMT -03:00 | DST | -10800 |
| Atlantic/Canary (WEST) | Jul 17 2018 01:00:00 | GMT +01:00 | DST | +3600 |
| Atlantic/Cape Verde (-01) | Jul 16 2018 23:00:00 | GMT -01:00 | -3600 | |
| Atlantic/Faroe (WEST) | Jul 17 2018 01:00:00 | GMT +01:00 | DST | +3600 |
| Atlantic/Madeira (WEST) | Jul 17 2018 01:00:00 | GMT +01:00 | DST | +3600 |
| Atlantic/Reykjavik (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Atlantic/South Georgia (-02) | Jul 16 2018 22:00:00 | GMT -02:00 | -7200 | |
| Atlantic/St Helena (GMT) | Jul 17 2018 00:00:00 | GMT +00:00 | 0 | |
| Atlantic/Stanley (-03) | Jul 16 2018 21:00:00 | GMT -03:00 | -10800 | |
| Australia | ||||
| Australia/Adelaide (ACST) | Jul 17 2018 09:30:00 | GMT +09:30 | +34200 | |
| Australia/Brisbane (AEST) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Australia/Broken Hill (ACST) | Jul 17 2018 09:30:00 | GMT +09:30 | +34200 | |
| Australia/Darwin (ACST) | Jul 17 2018 09:30:00 | GMT +09:30 | +34200 | |
| Australia/Eucla (+0845) | Jul 17 2018 08:45:00 | GMT +08:45 | +31500 | |
| Australia/Hobart (AEST) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Australia/Lindeman (AEST) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Australia/Lord Howe (+1030) | Jul 17 2018 10:30:00 | GMT +10:30 | +37800 | |
| Australia/Melbourne (AEST) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Australia/Perth (AWST) | Jul 17 2018 08:00:00 | GMT +08:00 | +28800 | |
| Australia/Sydney (AEST) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Europe | ||||
| Europe/Amsterdam (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Andorra (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Astrakhan (+04) | Jul 17 2018 04:00:00 | GMT +04:00 | +14400 | |
| Europe/Athens (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Europe/Belgrade (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Berlin (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Bratislava (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Brussels (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Bucharest (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Europe/Budapest (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Busingen (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Chisinau (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Europe/Copenhagen (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Dublin (IST) | Jul 17 2018 01:00:00 | GMT +01:00 | +3600 | |
| Europe/Gibraltar (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Guernsey (BST) | Jul 17 2018 01:00:00 | GMT +01:00 | DST | +3600 |
| Europe/Helsinki (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Europe/Isle of Man (BST) | Jul 17 2018 01:00:00 | GMT +01:00 | DST | +3600 |
| Europe/Istanbul (+03) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Europe/Jersey (BST) | Jul 17 2018 01:00:00 | GMT +01:00 | DST | +3600 |
| Europe/Kaliningrad (EET) | Jul 17 2018 02:00:00 | GMT +02:00 | +7200 | |
| Europe/Kirov (+03) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Europe/Kyiv (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Europe/Lisbon (WEST) | Jul 17 2018 01:00:00 | GMT +01:00 | DST | +3600 |
| Europe/Ljubljana (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/London (BST) | Jul 17 2018 01:00:00 | GMT +01:00 | DST | +3600 |
| Europe/Luxembourg (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Madrid (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Malta (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Mariehamn (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Europe/Minsk (+03) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Europe/Monaco (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Moscow (MSK) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Europe/Oslo (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Paris (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Podgorica (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Prague (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Riga (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Europe/Rome (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Samara (+04) | Jul 17 2018 04:00:00 | GMT +04:00 | +14400 | |
| Europe/San Marino (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Sarajevo (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Saratov (+04) | Jul 17 2018 04:00:00 | GMT +04:00 | +14400 | |
| Europe/Simferopol (MSK) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Europe/Skopje (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Sofia (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Europe/Stockholm (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Tallinn (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Europe/Tirane (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Ulyanovsk (+04) | Jul 17 2018 04:00:00 | GMT +04:00 | +14400 | |
| Europe/Vaduz (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Vatican (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Vienna (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Vilnius (EEST) | Jul 17 2018 03:00:00 | GMT +03:00 | DST | +10800 |
| Europe/Volgograd (+03) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Europe/Warsaw (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Zagreb (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Europe/Zurich (CEST) | Jul 17 2018 02:00:00 | GMT +02:00 | DST | +7200 |
| Indian | ||||
| Indian/Antananarivo (EAT) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Indian/Chagos (+06) | Jul 17 2018 06:00:00 | GMT +06:00 | +21600 | |
| Indian/Christmas (+07) | Jul 17 2018 07:00:00 | GMT +07:00 | +25200 | |
| Indian/Cocos (+0630) | Jul 17 2018 06:30:00 | GMT +06:30 | +23400 | |
| Indian/Comoro (EAT) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Indian/Kerguelen (+05) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Indian/Mahe (+04) | Jul 17 2018 04:00:00 | GMT +04:00 | +14400 | |
| Indian/Maldives (+05) | Jul 17 2018 05:00:00 | GMT +05:00 | +18000 | |
| Indian/Mauritius (+04) | Jul 17 2018 04:00:00 | GMT +04:00 | +14400 | |
| Indian/Mayotte (EAT) | Jul 17 2018 03:00:00 | GMT +03:00 | +10800 | |
| Indian/Reunion (+04) | Jul 17 2018 04:00:00 | GMT +04:00 | +14400 | |
| Pacific | ||||
| Pacific/Apia (+13) | Jul 17 2018 13:00:00 | GMT +13:00 | +46800 | |
| Pacific/Auckland (NZST) | Jul 17 2018 12:00:00 | GMT +12:00 | +43200 | |
| Pacific/Bougainville (+11) | Jul 17 2018 11:00:00 | GMT +11:00 | +39600 | |
| Pacific/Chatham (+1245) | Jul 17 2018 12:45:00 | GMT +12:45 | +45900 | |
| Pacific/Chuuk (+10) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Pacific/Easter (-06) | Jul 16 2018 18:00:00 | GMT -06:00 | -21600 | |
| Pacific/Efate (+11) | Jul 17 2018 11:00:00 | GMT +11:00 | +39600 | |
| Pacific/Fakaofo (+13) | Jul 17 2018 13:00:00 | GMT +13:00 | +46800 | |
| Pacific/Fiji (+12) | Jul 17 2018 12:00:00 | GMT +12:00 | +43200 | |
| Pacific/Funafuti (+12) | Jul 17 2018 12:00:00 | GMT +12:00 | +43200 | |
| Pacific/Galapagos (-06) | Jul 16 2018 18:00:00 | GMT -06:00 | -21600 | |
| Pacific/Gambier (-09) | Jul 16 2018 15:00:00 | GMT -09:00 | -32400 | |
| Pacific/Guadalcanal (+11) | Jul 17 2018 11:00:00 | GMT +11:00 | +39600 | |
| Pacific/Guam (ChST) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Pacific/Honolulu (HST) | Jul 16 2018 14:00:00 | GMT -10:00 | -36000 | |
| Pacific/Kanton (+13) | Jul 17 2018 13:00:00 | GMT +13:00 | +46800 | |
| Pacific/Kiritimati (+14) | Jul 17 2018 14:00:00 | GMT +14:00 | +50400 | |
| Pacific/Kosrae (+11) | Jul 17 2018 11:00:00 | GMT +11:00 | +39600 | |
| Pacific/Kwajalein (+12) | Jul 17 2018 12:00:00 | GMT +12:00 | +43200 | |
| Pacific/Majuro (+12) | Jul 17 2018 12:00:00 | GMT +12:00 | +43200 | |
| Pacific/Marquesas (-0930) | Jul 16 2018 14:30:00 | GMT -09:30 | -34200 | |
| Pacific/Midway (SST) | Jul 16 2018 13:00:00 | GMT -11:00 | -39600 | |
| Pacific/Nauru (+12) | Jul 17 2018 12:00:00 | GMT +12:00 | +43200 | |
| Pacific/Niue (-11) | Jul 16 2018 13:00:00 | GMT -11:00 | -39600 | |
| Pacific/Norfolk (+11) | Jul 17 2018 11:00:00 | GMT +11:00 | +39600 | |
| Pacific/Noumea (+11) | Jul 17 2018 11:00:00 | GMT +11:00 | +39600 | |
| Pacific/Pago Pago (SST) | Jul 16 2018 13:00:00 | GMT -11:00 | -39600 | |
| Pacific/Palau (+09) | Jul 17 2018 09:00:00 | GMT +09:00 | +32400 | |
| Pacific/Pitcairn (-08) | Jul 16 2018 16:00:00 | GMT -08:00 | -28800 | |
| Pacific/Pohnpei (+11) | Jul 17 2018 11:00:00 | GMT +11:00 | +39600 | |
| Pacific/Port Moresby (+10) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Pacific/Rarotonga (-10) | Jul 16 2018 14:00:00 | GMT -10:00 | -36000 | |
| Pacific/Saipan (ChST) | Jul 17 2018 10:00:00 | GMT +10:00 | +36000 | |
| Pacific/Tahiti (-10) | Jul 16 2018 14:00:00 | GMT -10:00 | -36000 | |
| Pacific/Tarawa (+12) | Jul 17 2018 12:00:00 | GMT +12:00 | +43200 | |
| Pacific/Tongatapu (+13) | Jul 17 2018 13:00:00 | GMT +13:00 | +46800 | |
| Pacific/Wake (+12) | Jul 17 2018 12:00:00 | GMT +12:00 | +43200 | |
| Pacific/Wallis (+12) | Jul 17 2018 12:00:00 | GMT +12:00 | +43200 | |
| UTC (GMT) | ||||
| UTC (UTC) | Jul 17 2018 00:00:00 | 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