Military & Civilian Time Designations
From Time Zone A - Z
There are 25 integer World Time Zones from -12 through 0 (GMT) to +12. Each one is 15° of Longitude as measured East and West from the Prime Meridian of the World at Greenwich, England. Some countries have adopted non-standard time zones, usually 30 minutes offset which have a * designation.
Each Time Zone is measured relative to Greenwich, England. There are both civilian designations which are typically three letter abbreviations (e.g. EST) for most time zones. In addition there are military designations. These use each letter of the alphabet (except 'J') and are known by their phonetic equivalent. E.G. Greenwich Mean Time (civilian) or Z = Zulu (military and aviation).
Standard Time Zones
Note: cities in italics operate Daylight Saving Time during Summer months
GMT | Zone | Military | Civilian Time Zones | Cities Standard Time Zone |
---|---|---|---|---|
GMT Current time clock GMT (opens in new window) |
Z | Zulu | GMT: Greenwich Mean UT: Universal UTC: Universal Co-ordinated WET: Western European |
East of Greenwich
GMT | Zone | Military | Civilian Time Zones | Cities Standard Time Zone |
---|---|---|---|---|
GMT+1 | A | Alpha | ||
GMT+2 | B | Bravo | ||
GMT+3 | C | Charlie | BT: Baghdad | |
GMT+3:30 | C* | |||
GMT+4 | D | Delta | ||
GMT+4:30 | D* | |||
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 | ||
GMT+12 | M | Mike | IDLE: International Date Line East NZST: New Zealand Standard |
Wellington, New Zealand Fiji Marshall Islands |
M* | Rawaki Islands: Enderbury Kiribati | |||
M± | Line Islands: Kiritibati |
West of Greenwich
GMT | Zone | Military | Civilian Time Zones | Cities Standard Time Zone |
---|---|---|---|---|
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 | ||
GMT-6 | S | Sierra | Mexico City, Mexico Saskatchewan, Canada |
|
GMT-7 | T | Tango | ||
GMT-8 | U | Uniform | ||
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 |
See Summer Time (or Daylight saving) Time Zones
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