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Use this D Time Converter page to check current local time, UTC and GMT offset, daylight saving details, related time zones, and popular time converter links.

Delta Time Zone

Offset: D is 4 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Armenia, Azerbaijan, Georgia, Mauritius, Oman, Réunion, Russia, Seychelles, United Arab Emirates

Principal Cities: The largest city in the D time zone is Dubai in the United Arab Emirates, with about 3.79 million people. Other major cities in this time zone include Baku, Abu Dhabi, Sharjah, Samara.

Daylight Saving: Clocks in Delta Time Zone (D) do not change for daylight saving time, so D stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

D representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +04 - basic short
  • +0400 - basic
  • +04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0400 - sign character (+) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Delta - Military abbreviation for D
  • D - short form of 'Delta'
Time zones with the GMT +4 offset:
  • KUYT - Kuybyshev Time
  • MSD - Moscow Daylight Time
  • SAMT - Samara Time
  • AMT - Armenia Time
  • AZT - Azerbaijan Time
  • D - Delta Time Zone
  • GET - Georgia Standard Time
  • GST - Gulf Standard Time
  • MUT - Mauritius Time
  • RET - Reunion Time
  • SCT - Seychelles Time