What is BST in TRT?
Turkey Time is 2 hours ahead
British Time is on UTC+1:00 and Turkey Time is on UTC+3:00 right now. British Time is on daylight saving, so its clocks read BST. The gap changes during the year — see below.
- Time in London
- 3:56 am
- Time in Istanbul
- 5:56 am
- Difference
- +2 h
- Next clock change
- October 25, 2026
Convert a time
TRT — Turkey Time
5:00 am
Wed
When the difference changes
British Time and Turkey Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:
- Now – October 25, 2026Turkey Time is 2 hours ahead
- October 25, 2026 – March 28, 2027Turkey Time is 3 hours ahead
- March 28, 2027 – onwardsTurkey Time is 2 hours ahead
Periods shorter than a day are not listed: both zones change at 2am in their own local time, so there are a few hours on each transition date when the gap is briefly something else.
Daylight saving
British Time
Clocks go back one hour at 2am local time, becoming GMT.
Turkey Time
Turkey Time stays on TRT all year, so its offset from UTC never moves.
BST to TRT conversion table
Every hour of Wednesday, September 23, 2026, converted from British Time to Turkey Time. 2 of the 24 hours fall on a different calendar day in Istanbul, which is marked.
- 12:00 am BST
- 2:00 am TRT
- 1:00 am BST
- 3:00 am TRT
- 2:00 am BST
- 4:00 am TRT
- 3:00 am BST
- 5:00 am TRT
- 4:00 am BST
- 6:00 am TRT
- 5:00 am BST
- 7:00 am TRT
- 6:00 am BST
- 8:00 am TRT
- 7:00 am BST
- 9:00 am TRT
- 8:00 am BST
- 10:00 am TRT
- 9:00 am BST
- 11:00 am TRT
- 10:00 am BST
- 12:00 pm TRT
- 11:00 am BST
- 1:00 pm TRT
- 12:00 pm BST
- 2:00 pm TRT
- 1:00 pm BST
- 3:00 pm TRT
- 2:00 pm BST
- 4:00 pm TRT
- 3:00 pm BST
- 5:00 pm TRT
- 4:00 pm BST
- 6:00 pm TRT
- 5:00 pm BST
- 7:00 pm TRT
- 6:00 pm BST
- 8:00 pm TRT
- 7:00 pm BST
- 9:00 pm TRT
- 8:00 pm BST
- 10:00 pm TRT
- 9:00 pm BST
- 11:00 pm TRT
- 10:00 pm BST
- 12:00 am TRT+1 day
- 11:00 pm BST
- 1:00 am TRT+1 day
Scheduling between the two
Working hours overlap from 9:00 am to 4:00 pm BST, which is 11:00 am to 6:00 pm TRT. Anything inside that window falls in the normal working day at both ends.
A note on BST: it can also mean Bangladesh Standard Time (UTC+6). This page means British Summer Time.
British Time (BST) is used in the whole United Kingdom. In winter the UK is on GMT; from late March to late October it is on BST, an hour ahead.
Turkey Time (TRT) is used in all of Türkiye, on a permanent UTC+3 since 2016