Oslo to Tehran Time Difference
🇳🇴 Oslo is currently 2.5 hours ahead of 🇮🇷 Tehran. This difference varies between 1.5h and 2.5h due to Daylight Saving Time.
Live Calculator
Atin 🇳🇴 Oslo→it will be—in 🇮🇷 Tehran
Open full calculator →DST-accurate · shareable link
Difference
+2.5h
Business overlap
6h
Distance
3,951 km
Approx. flight
4.6h
Hour-by-Hour: Oslo to Tehran
| 🇳🇴 Oslo | 🇮🇷 Tehran | Note |
|---|---|---|
| 12:00 AM | 2:30 AM | |
| 1:00 AM | 3:30 AM | |
| 2:00 AM | 4:30 AM | |
| 3:00 AM | 5:30 AM | |
| 4:00 AM | 6:30 AM | |
| 5:00 AM | 7:30 AM | |
| 6:00 AM | 8:30 AM | |
| 7:00 AM | 9:30 AM | |
| 8:00 AM | 10:30 AM | |
| 9:00 AM | 11:30 AM | |
| 10:00 AM | 12:30 PM | |
| 11:00 AM | 1:30 PM | |
| 12:00 PM | 2:30 PM | |
| 1:00 PM | 3:30 PM | |
| 2:00 PM | 4:30 PM | |
| 3:00 PM | 5:30 PM | |
| 4:00 PM | 6:30 PM | |
| 5:00 PM | 7:30 PM | |
| 6:00 PM | 8:30 PM | |
| 7:00 PM | 9:30 PM | |
| 8:00 PM | 10:30 PM | |
| 9:00 PM | 11:30 PM | |
| 10:00 PM | 12:30 AM(next day) | Next day |
| 11:00 PM | 1:30 AM(next day) | Next day |
Daylight Saving Time (DST)
Oslo observes Daylight Saving Time, while Tehran does not. This causes the time difference to shift between 1.5 hours ahead and 2.5 hours ahead depending on the season. Currently, Oslo is 2.5 hours ahead relative to Tehran.
Min difference
1.5h
Max difference
2.5h
Best Meeting Times
There are 6 overlapping business hours between Oslo and Tehran (9 AM – 6 PM in each city).
🇳🇴 Oslo
9:00 AM – 3:00 PM
🇮🇷 Tehran
11:30 AM – 5:30 PM
Frequently Asked Questions
What is the time difference between Oslo and Tehran?
The time difference between Oslo and Tehran is currently 2.5 hours ahead. Oslo uses GMT+1 (UTC+1), while Tehran uses GMT+3:30 (UTC+3:30). This difference varies seasonally due to Daylight Saving Time, ranging from 1.5 hours ahead to 2.5 hours ahead.
When it's noon in Oslo, what time is it in Tehran?
When it's 12:00 PM (noon) in Oslo, it is 2:30 PM in Tehran. Use our calculator above to convert any other time.
Does the time difference between Oslo and Tehran change?
Yes, the time difference changes throughout the year. Because Oslo observes Daylight Saving Time, the offset shifts between 1.5 hours ahead and 2.5 hours ahead at different times of the year.
What are the best times to schedule a call between Oslo and Tehran?
The best time to call is between 9:00 AM and 3:00 PM in Oslo (which is 11:30 AM – 5:30 PM in Tehran). This 6-hour window falls within business hours in both cities.
Is Oslo ahead or behind Tehran?
Oslo is currently 2.5 hours behind Tehran.
What time zone is Oslo in?
Oslo is in the Europe/Oslo time zone, currently using GMT+1 (UTC+1). Oslo observes Daylight Saving Time, so the offset changes twice a year.
What time is midnight in Oslo in Tehran?
When it is midnight (12:00 AM) in Oslo, it is 2:30 AM in Tehran.