What is GMT in TRT?
Turkey Time is 3 hours ahead
Greenwich Mean Time is on UTC+0:00 and Turkey Time is on UTC+3:00 right now. That gap holds all year, because both zones change their clocks together.
- Time in Greenwich
- 2:56 am
- Time in Istanbul
- 5:56 am
- Difference
- +3 h
- Next clock change
- Neither zone
Convert a time
TRT — Turkey Time
5:00 am
Wed
Daylight saving
Greenwich Mean Time
Greenwich Mean Time stays on GMT all year, so its offset from UTC never moves.
Turkey Time
Turkey Time stays on TRT all year, so its offset from UTC never moves.
GMT to TRT conversion table
Every hour of Wednesday, September 23, 2026, converted from Greenwich Mean Time to Turkey Time. 3 of the 24 hours fall on a different calendar day in Istanbul, which is marked.
- 12:00 am GMT
- 3:00 am TRT
- 1:00 am GMT
- 4:00 am TRT
- 2:00 am GMT
- 5:00 am TRT
- 3:00 am GMT
- 6:00 am TRT
- 4:00 am GMT
- 7:00 am TRT
- 5:00 am GMT
- 8:00 am TRT
- 6:00 am GMT
- 9:00 am TRT
- 7:00 am GMT
- 10:00 am TRT
- 8:00 am GMT
- 11:00 am TRT
- 9:00 am GMT
- 12:00 pm TRT
- 10:00 am GMT
- 1:00 pm TRT
- 11:00 am GMT
- 2:00 pm TRT
- 12:00 pm GMT
- 3:00 pm TRT
- 1:00 pm GMT
- 4:00 pm TRT
- 2:00 pm GMT
- 5:00 pm TRT
- 3:00 pm GMT
- 6:00 pm TRT
- 4:00 pm GMT
- 7:00 pm TRT
- 5:00 pm GMT
- 8:00 pm TRT
- 6:00 pm GMT
- 9:00 pm TRT
- 7:00 pm GMT
- 10:00 pm TRT
- 8:00 pm GMT
- 11:00 pm TRT
- 9:00 pm GMT
- 12:00 am TRT+1 day
- 10:00 pm GMT
- 1:00 am TRT+1 day
- 11:00 pm GMT
- 2:00 am TRT+1 day
Scheduling between the two
Working hours overlap from 9:00 am to 3:00 pm GMT, which is 12:00 pm to 6:00 pm TRT. Anything inside that window falls in the normal working day at both ends.
Greenwich Mean Time (GMT) is used in as a fixed UTC+0 offset. Note that the UK itself leaves GMT every summer — see British Time below.
Turkey Time (TRT) is used in all of Türkiye, on a permanent UTC+3 since 2016