Time zone · Asia
ISTANB
Istanbul Time
Istanbul Time (ISTANB) keeps things simple with a steady UTC+03:00 year-round—no daylight saving changes to worry about. Whether you're scheduling across Turkey or syncing with global teams, this fixed offset makes planning straightforward and predictable.
Thursday, October 15, 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 (ISTANB) keeps things simple with a steady UTC+03:00 year-round—no daylight saving changes to worry about. Whether you're scheduling across Turkey or syncing with global teams, this fixed offset makes planning straightforward and predictable.
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 across ISTANB
Local time, city by city.
22 cities
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.
Convert
ISTANB to the world's clocks.
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].
- Does Istanbul Time observe daylight saving time?
- No. Turkey abolished daylight saving time in 2016, so ISTANB stays at UTC+03:00 all year.
- When did Turkey stop using daylight saving?
- Turkey last changed its clocks on March 27, 2016, when it moved to UTC+03:00 for summer. In September 2016 it made that time permanent, so the clocks never went back that autumn.
- Is Istanbul Time the same across all of Turkey?
- Yes. The entire country uses a single time zone, with no regional variations.
- What’s the official abbreviation for Istanbul Time?
- Turkey Time is often abbreviated TRT, and many apps and devices simply show it as +03.
- How does ISTANB compare to neighboring time zones?
- ISTANB (UTC+03:00) matches Moscow Time all year, is one hour ahead of Eastern European Time (UTC+02:00) in winter, and is level with Greece, Romania and the other EU countries on Eastern European Time in summer, when they move to UTC+03:00, making coordination with parts of Europe and the Middle East relatively seamless.
- Why did Turkey abolish daylight saving?
- In 2016, Turkey decided to stay on permanent summer time (UTC+03:00) to maximize evening daylight and simplify scheduling across government, business, and daily life.
- Are there any upcoming time zone changes for Istanbul?
- No. There are no planned transitions—ISTANB remains fixed at UTC+03:00 indefinitely.
- How does the fixed offset affect international business with Turkey?
- The consistent UTC+03:00 makes it easier to plan meetings and deadlines without adjusting for seasonal time shifts, especially when working with partners in Europe or Asia.
Source: IANA tzdb2026d · Reviewed
Free · Developer API
This time zone, as JSON.
Its defining offset, DST status and member counts, from one endpoint.
Also in the API: time zones by coordinates, conversions that flag daylight saving gaps, and abbreviations decoded.
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