What is TRT in GMT?
Greenwich Mean Time is 3 hours behind
Turkey Time is on UTC+3:00 and Greenwich Mean Time is on UTC+0:00 right now. That gap holds all year, because both zones change their clocks together.
- Time in Istanbul
- 5:14 am
- Time in Greenwich
- 2:14 am
- Difference
- −3 h
- Next clock change
- Neither zone
Convert a time
GMT — Greenwich Mean Time
2:00 am
Wed
Daylight saving
Turkey Time
Turkey Time stays on TRT all year, so its offset from UTC never moves.
Greenwich Mean Time
Greenwich Mean Time stays on GMT all year, so its offset from UTC never moves.
TRT to GMT conversion table
Every hour of Wednesday, September 23, 2026, converted from Turkey Time to Greenwich Mean Time. 3 of the 24 hours fall on a different calendar day in Greenwich, which is marked.
- 12:00 am TRT
- 9:00 pm GMT−1 day
- 1:00 am TRT
- 10:00 pm GMT−1 day
- 2:00 am TRT
- 11:00 pm GMT−1 day
- 3:00 am TRT
- 12:00 am GMT
- 4:00 am TRT
- 1:00 am GMT
- 5:00 am TRT
- 2:00 am GMT
- 6:00 am TRT
- 3:00 am GMT
- 7:00 am TRT
- 4:00 am GMT
- 8:00 am TRT
- 5:00 am GMT
- 9:00 am TRT
- 6:00 am GMT
- 10:00 am TRT
- 7:00 am GMT
- 11:00 am TRT
- 8:00 am GMT
- 12:00 pm TRT
- 9:00 am GMT
- 1:00 pm TRT
- 10:00 am GMT
- 2:00 pm TRT
- 11:00 am GMT
- 3:00 pm TRT
- 12:00 pm GMT
- 4:00 pm TRT
- 1:00 pm GMT
- 5:00 pm TRT
- 2:00 pm GMT
- 6:00 pm TRT
- 3:00 pm GMT
- 7:00 pm TRT
- 4:00 pm GMT
- 8:00 pm TRT
- 5:00 pm GMT
- 9:00 pm TRT
- 6:00 pm GMT
- 10:00 pm TRT
- 7:00 pm GMT
- 11:00 pm TRT
- 8:00 pm GMT
Scheduling between the two
Working hours overlap from 12:00 pm to 6:00 pm TRT, which is 9:00 am to 3:00 pm GMT. Anything inside that window falls in the normal working day at both ends.
Turkey Time (TRT) is used in all of Türkiye, on a permanent UTC+3 since 2016
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.