Time zone · Asia
ISTANB
Istanbul Time
Istanbul Time keeps Turkey on a steady UTC+03:00 all year, so you never have to think about seasonal clock changes—meetings, broadcasts, and transit timetables stay fixed whether it’s January or July. The zone matches up with Moscow and East Africa, making it simple to sync with projects across Europe’s eastern rim.
Sunday, May 31, 2026
Current offset
UTC+03:00
Standard · +03
Daylight saving
Not observed
Year-round standard time
IANA zones
1
None observe daylight saving
DST offset
—
No summer variant
About ISTANB
A fixed, year-round offset.
Istanbul Time keeps Turkey on a steady UTC+03:00 all year, so you never have to think about seasonal clock changes—meetings, broadcasts, and transit timetables stay fixed whether it’s January or July. The zone matches up with Moscow and East Africa, making it simple to sync with projects across Europe’s eastern rim.
IANA zones · the technical identifiers
The zone that resolve to ISTANB.
For software, always store the IANA identifier — never the abbreviation alone. The database keeps these zones distinct because their rules can, and historically did, diverge.
Cities currently on ISTANB
The same hour, city by city.
1 city · all UTC+03:00
Where ISTANB is used
One country.
Same offset · UTC+03:00
Other zones at UTC+03:00 right now.
These named zones share ISTANB's offset today. When daylight saving rules differ, they drift apart for part of the year.
Frequently asked questions
Common questions about ISTANB, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- Why does Turkey stay on UTC+03:00 without daylight saving?
- In 2016 Ankara decided to keep summer time permanently, ending 80-plus years of clock shifts to simplify energy planning and business schedules.
- Which other major regions share this offset?
- Moscow, Nairobi, and Riyadh are all on UTC+03:00 year-round; calls overlap with many European and East African business hours.
- Does Saharan or Middle Eastern time observing daylight saving ever confuse schedulers with the same abbreviation?
- Yes—several daylight-saving zones bounce in and out of +03, so double-check the actual location in your calendar before locking a year-long recurring meeting.
- What does ‘no next transition’ mean for calendar tools?
- Because the clocks never move, most modern apps list ‘no further transitions after 2021’ for ISTANBUL, so future dates stay projected correctly without summer/winter offsets.
- Is Istanbul’s longitude consistent with a +03:00 meridian?
- Geographically it sits closer to the +02 solar meridian, but national policy moved the legal time one hour forward to align business hours with trading partners like Moscow and the Gulf states.
Free · Developer API
Time, as JSON.
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