Istanbul TehranTime Converter
Istanbul (GMT+3, UTC+3) is currently 30 minutes behind Tehran (GMT+3:30, UTC+3:30). Compare live clocks, convert any hour, and find times to meet.
Best time to meet between Istanbul and Tehran
Best meeting times:
Istanbul: 9:00 AM – 6:00 PM
Tehran: 9:30 AM – 6:30 PM
Quick answer
When it's in Istanbul, it's the same day in Tehran.
Istanbul (GMT+3) runs 30 minutes behind Tehran (GMT+3:30). Both sides keep standard office hours with a real 9–6 overlap: the highlighted window above works for everyone.
- Time difference
- +0h 30m
- Istanbul
- UTC+3
- Tehran
- UTC+3:30
- Best call window
- 9:00 AM GMT+3
Istanbul to Tehran conversion table
The next 12 hours in Istanbul and the matching local time in Tehran. The current hour is highlighted; drag the converter's slider and the table follows.
| Istanbul · GMT+3 | Tehran · GMT+3:30 |
|---|---|
| NOW Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
This time difference never changes
Neither side observes daylight saving against the other, so the gap stays constant all year. Istanbul does not observe daylight saving time. Tehran does not observe daylight saving time. This page always shows the live, DST-aware difference.
Related time zone conversions
Jump straight to another pair: every combination is a live tool, not an article.
From Istanbul
To Tehran
One source of truth, for you and your AI
This page exposes the same answer as structured data, so when you ask an assistant "what's 9am Istanbul time in Tehran?", it can cite the exact, DST-aware result, not a stale blog post.
- Schema.org JSON-LD on every converter page
- A machine-readable facts island with time zone identifiers and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "Istanbul → Tehran",
"url": "https://worldclock.pro/en/convert/istanbul-to-tehran",
"from": {
"name": "Istanbul",
"type": "city",
"abbreviation": "GMT+3",
"daylightAbbreviation": null,
"iana": "Europe/Istanbul",
"standardUtcOffset": "+03:00",
"daylightUtcOffset": null,
"referenceCity": "Istanbul"
},
"to": {
"name": "Tehran",
"type": "city",
"abbreviation": "GMT+3:30",
"daylightAbbreviation": null,
"iana": "Asia/Tehran",
"standardUtcOffset": "+03:30",
"daylightUtcOffset": null,
"referenceCity": "Tehran"
},
"currentDifferenceMinutes": 30,
"possibleDifferencesMinutes": [
30
],
"note": "The difference is constant year-round."
}
Frequently asked questions
What is the time difference between Istanbul and Tehran?
Istanbul is currently 30 minutes behind Tehran. Istanbul is on GMT+3 (UTC+3) and Tehran is on GMT+3:30 (UTC+3:30). The difference can change when either side starts or ends daylight saving time.
Is Tehran ahead of or behind Istanbul?
Tehran is currently 30 minutes ahead of Istanbul.
When it is 9:00 AM in Istanbul, what time is it in Tehran?
When it is 9:00 AM on a Friday in Istanbul, it is 9:30 AM in Tehran.
Do Istanbul and Tehran observe daylight saving time?
Istanbul does not observe daylight saving time. Tehran does not observe daylight saving time.
How do I convert Istanbul time to Tehran time?
Add 30 minutes to any time in Istanbul to get the time in Tehran. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
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