Istanbul time zone
The current UTC offset for Istanbul, its daylight saving behaviour, and how its working day lines up with the world's major business hubs.
Zone Europe/Istanbul, currently reporting as GMT+3. No daylight saving is observed here.
Daylight saving in Istanbul
Istanbul does not observe daylight saving. Its offset is UTC+3 on every day of the year, which makes recurring meetings straightforward — once a slot is agreed in local time it stays correct indefinitely.
About Istanbul
Istanbul abandoned seasonal clock changes in 2016 and has held a fixed offset ever since. This makes it straightforward against other fixed-offset regions but means its relationship to the EU changes twice a year: Istanbul is two hours ahead of Central Europe in winter and only one in summer. Working from a remembered offset will be wrong for half the year.
Overlap with major hubs
| City | Offset from Istanbul | Overlap quality |
|---|---|---|
| New York | −7 | 2h shared working hours |
| London | −2 | 7h shared working hours |
| Dubai | +1 | 8h shared working hours |
| Singapore | +5 | 4h shared working hours |
| Sydney | +7 | 2h shared working hours |
Overlap quality compares core working hours (09:00–17:59 local) in both cities. Follow any row for the full hour-by-hour breakdown.
The Istanbul working day in UTC
| UTC | Istanbul | Status |
|---|---|---|
| 00:00 | 03:00 | Asleep |
| 01:00 | 04:00 | Asleep |
| 02:00 | 05:00 | Asleep |
| 03:00 | 06:00 | Early morning |
| 04:00 | 07:00 | Early morning |
| 05:00 | 08:00 | Early morning |
| 06:00 | 09:00 | Working hours |
| 07:00 | 10:00 | Working hours |
| 08:00 | 11:00 | Working hours |
| 09:00 | 12:00 | Working hours |
| 10:00 | 13:00 | Working hours |
| 11:00 | 14:00 | Working hours |
| 12:00 | 15:00 | Working hours |
| 13:00 | 16:00 | Working hours |
| 14:00 | 17:00 | Working hours |
| 15:00 | 18:00 | Evening |
| 16:00 | 19:00 | Evening |
| 17:00 | 20:00 | Evening |
| 18:00 | 21:00 | Late night |
| 19:00 | 22:00 | Late night |
| 20:00 | 23:00 | Late night |
| 21:00 | 00:00 next day | Asleep |
| 22:00 | 01:00 next day | Asleep |
| 23:00 | 02:00 next day | Asleep |
Shown for 27 August 2026.
Compare with your own cities
Open the interactive grid to place Istanbul alongside up to ten other cities and see where everyone's working hours overlap.
Intl API and were last generated on 27 August 2026. See how we calculate these figures.