Calling your relatives overseas while they are sleeping bothers them, and vice versa. So, this page is created so that you will know what time to call them. And, as a bonus, a table containing vital information about computing time zones are included.
DISCLAIMER:All of the materials present here are not intended for profitable uses, but only to be used as supplementary material.
| GMT | Zone | Military | Civilian Time Zones | Cities |
| GMT For accurate time | Z | Zulu | GMT: Greenwich Mean UT: Universal UTC: Universal Co-ordinated WET: Western European | London, England Dublin, Ireland Edinburgh, Scotland Lisbon, Portugal Reykjavik, Iceland Casablanca, Morocco |
| GMT | Zone | Military | Civilian Time Zones | Cities |
| GMT+1 | A | Alpha | CET: Central European | Paris, France Berlin, Germany Amsterdam, The Netherlands Brussels, Belgium Vienna, Austria Madrid, Spain Rome, Italy Bern, Switzerland Stockholm, Sweden Oslo, Norway |
| GMT+2 | B | Bravo | EET: Eastern European | Athens, Greece Helsinki, Finland Istanbul, Turkey Jerusalem, Israel Harare, Zimbabwe |
| GMT+3 | C | Charlie | BT: Baghdad | Kuwait Nairobi, Kenya Riyadh, Saudi Arabia Moscow, Russia |
| GMT+3:30 | C* |
| Tehran | |
| GMT+4 | D | Delta | Abu Dhabi, UAE Muscat Tblisi Volgograd Kabul | |
| GMT+4:30 | D* |
| Afghanistan | |
| GMT+5 | E | Echo | ||
| GMT+5:30 | E* |
| India | |
| GMT+6 | F | Foxtrot | ||
| GMT+6:30 | F* | Cocos Islands | ||
| GMT+7 | G | Golf | ||
| GMT+8 | H | Hotel | CCT: China Coast | |
| GMT+9 | I | India | JST: Japan Standard, | |
| GMT+9:30 | I* | Australia Central Standard | Darwin, Australia Adelaide, Australia | |
| GMT+10 | K | Kilo | GST: Guam Standard | |
| GMT+10:30 | K* |
| Lord Howe Island | |
| GMT+11 | L | Lima | ||
| GMT+11:30 | L* |
| Norfolk Island | |
| Time Zones Time = GMT+12 | M | Mike | IDLE: International Date Line East NZST: New Zealand Standard | Wellington, New Zealand Fiji Marshall Islands |
| GMT+13:00 | M* |
| Rawaki Islands: Enderbury Kiribati | |
| GMT+14:00 | M± |
| Line Islands: Kiritibati |
| GMT | Zone | Military | Civilian Time Zones | Cities |
| GMT-1 | N | November | WAT: West Africa | Azores, Cape Verde Islands |
| GMT-2 | O | Oscar | AT: Azores | |
| GMT-3 | P | Papa | Brasilia, Brazil Buenos Aires, Argentina Georgetown, Guyana | |
| GMT-3:30 | P* |
| Newfoundland | |
| GMT-4 | Q | Quebec | AST: Atlantic Standard | Caracas La Paz |
| GMT-5 | R | Romeo | EST: Eastern Standard. | Bogota Lima, Peru New York, NY, USA |
| GMT-6 | S | Sierra | CST: Central Standard | Mexico City, Mexico Saskatchewan, Canada |
| GMT-7 | T | Tango | MST: Mountain Standard. | |
| GMT-8 | U | Uniform | PST: Pacific Standard | Los Angeles, CA, USA |
| GMT-8:30 | U* |
| ||
| GMT-9 | V | Victor | YST: Yukon Standard. | |
| GMT-9:30 | V* | |||
| GMT-10 | W | Whiskey | AHST: Alaska-Hawaii Standard CAT: Central Alaska HST: Hawaii Standard | |
| GMT-11 | X | X-ray | NT: Nome. | |
| GMT-12 | Y | Yankee | IDLW: International Date Line West |
There are many Daylight saving Time (DST) time-zones, indexed by the zone hour value relative to both Greenwich Mean Time (GMT) and British Summer Time (BST).
| Winter | Summer | Civilian Time |
| GMT For accurate time | Summer Time Time = GMT+1 To open clock in new window press here | BST - British Summer Time |
| Winter | Summer | Civilian Time |
| GMT-4 | GMT-3 | ADT - Atlantic Daylight |
| GMT-5 | GMT-4 | EDT - Eastern Daylight. |
| GMT-6 | GMT-5 | CDT - Central Daylight |
| GMT-7 | GMT-6 | MDT - Mountain Daylight. |
| GMT-8 | GMT-7 | PDT - Pacific Daylight. |
| GMT-9 | GMT-8 | YDT - Yukon Daylight. |
| GMT-10 | GMT-9 | HDT - Hawaii Daylight. |
| Winter | Summer | Civilian Time |
| GMT+1 | GMT+2 | MEST - Middle European Summer MESZ - Middle European Summer SST - Swedish Summer FST - French Summer. |