Tehran to Ulaanbaatar Time Difference
🇮🇷 Tehran is currently 4.5 hours ahead of 🇲🇳 Ulaanbaatar.
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Difference
+4.5h
Business overlap
4h
Distance
4,689 km
Approx. flight
5.5h
Hour-by-Hour: Tehran to Ulaanbaatar
| 🇮🇷 Tehran | 🇲🇳 Ulaanbaatar | Note |
|---|---|---|
| 12:00 AM | 4:30 AM | |
| 1:00 AM | 5:30 AM | |
| 2:00 AM | 6:30 AM | |
| 3:00 AM | 7:30 AM | |
| 4:00 AM | 8:30 AM | |
| 5:00 AM | 9:30 AM | |
| 6:00 AM | 10:30 AM | |
| 7:00 AM | 11:30 AM | |
| 8:00 AM | 12:30 PM | |
| 9:00 AM | 1:30 PM | |
| 10:00 AM | 2:30 PM | |
| 11:00 AM | 3:30 PM | |
| 12:00 PM | 4:30 PM | |
| 1:00 PM | 5:30 PM | |
| 2:00 PM | 6:30 PM | |
| 3:00 PM | 7:30 PM | |
| 4:00 PM | 8:30 PM | |
| 5:00 PM | 9:30 PM | |
| 6:00 PM | 10:30 PM | |
| 7:00 PM | 11:30 PM | |
| 8:00 PM | 12:30 AM(next day) | Next day |
| 9:00 PM | 1:30 AM(next day) | Next day |
| 10:00 PM | 2:30 AM(next day) | Next day |
| 11:00 PM | 3:30 AM(next day) | Next day |
Daylight Saving Time (DST)
Neither Tehran nor Ulaanbaatar observes Daylight Saving Time. The time difference is always 4.5 hours ahead.
Best Meeting Times
There are 4 overlapping business hours between Tehran and Ulaanbaatar (9 AM – 6 PM in each city).
🇮🇷 Tehran
9:00 AM – 1:00 PM
🇲🇳 Ulaanbaatar
1:30 PM – 5:30 PM
Frequently Asked Questions
What is the time difference between Tehran and Ulaanbaatar?
The time difference between Tehran and Ulaanbaatar is currently 4.5 hours ahead. Tehran uses GMT+3:30 (UTC+3:30), while Ulaanbaatar uses GMT+8 (UTC+8).
When it's noon in Tehran, what time is it in Ulaanbaatar?
When it's 12:00 PM (noon) in Tehran, it is 4:30 PM in Ulaanbaatar. Use our calculator above to convert any other time.
Does the time difference between Tehran and Ulaanbaatar change?
No. The time difference between Tehran and Ulaanbaatar is always 4.5 hours ahead — neither city observes Daylight Saving Time, so the offset never changes.
What are the best times to schedule a call between Tehran and Ulaanbaatar?
The best time to call is between 9:00 AM and 1:00 PM in Tehran (which is 1:30 PM – 5:30 PM in Ulaanbaatar). This 4-hour window falls within business hours in both cities.
Is Tehran ahead or behind Ulaanbaatar?
Tehran is currently 4.5 hours behind Ulaanbaatar.
What time zone is Tehran in?
Tehran is in the Asia/Tehran time zone, currently using GMT+3:30 (UTC+3:30). Tehran does not observe Daylight Saving Time.
What time is midnight in Tehran in Ulaanbaatar?
When it is midnight (12:00 AM) in Tehran, it is 4:30 AM in Ulaanbaatar.