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D – Delta Time Zone (Military Time)

Time Zone names, codes and abbreviations for Standard Time and Daylight Saving Time (DST) around the world.

Also known as: d – Delta Time, Delta

Time zone map of D
Areas with same time currently (UTC +4).
Currently has same time zone offset as D (UTC +4) but different time zone name.

Delta Time Zone (D) is 4 hours ahead of Coordinated Universal Time (UTC). This time zone is a military time zone.

See full time zone map

Where and When is D Observed?

Delta Time Zone is often used in aviation and the military as another name for UTC +4. Delta Time Zone is also commonly used at sea between longitudes 52.5° East and 67.5° East.

The letter D may be used as a suffix to denote a time being in the Delta Time Zone, such as 08:00D or 0800D. This is spoken as "zero eight hundred Delta".

Only showing up to 16 cities, others may also be observing Delta Time Zone.

This time zone is no longer in use, but some locations may observe the same UTC offset (local time) under a different name.

Other Time Zones in UTC +4

Some time zones exist that have the same offset as D, but can be found under a different name: