Military & Civilian Time Designations

From 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).

• For complete details of Daylight saving (Summer) Time see here

Standard Time Zones 

GMT	Zone	Military	Civilian Time Zones	Cities
GMT For accurate time press here	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

 

East of Greenwich

West of Greenwich

See Summer Time (or Daylight saving) Time Zones

 

  Please advise of any local changes.