Oslo to Kolkata Time Difference
🇳🇴 Oslo is currently 4.5 hours ahead of 🇮🇳 Kolkata. This difference varies between 3.5h and 4.5h due to Daylight Saving Time.
Live Calculator
Atin 🇳🇴 Oslo→it will be—in 🇮🇳 Kolkata
Open full calculator →DST-accurate · shareable link
Difference
+4.5h
Business overlap
4h
Distance
7,165 km
Approx. flight
8.4h
Hour-by-Hour: Oslo to Kolkata
| 🇳🇴 Oslo | 🇮🇳 Kolkata | 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)
Oslo observes Daylight Saving Time, while Kolkata does not. This causes the time difference to shift between 3.5 hours ahead and 4.5 hours ahead depending on the season. Currently, Oslo is 4.5 hours ahead relative to Kolkata.
Min difference
3.5h
Max difference
4.5h
Best Meeting Times
There are 4 overlapping business hours between Oslo and Kolkata (9 AM – 6 PM in each city).
🇳🇴 Oslo
9:00 AM – 1:00 PM
🇮🇳 Kolkata
1:30 PM – 5:30 PM
Frequently Asked Questions
What is the time difference between Oslo and Kolkata?
The time difference between Oslo and Kolkata is currently 4.5 hours ahead. Oslo uses GMT+1 (UTC+1), while Kolkata uses GMT+5:30 (UTC+5:30). This difference varies seasonally due to Daylight Saving Time, ranging from 3.5 hours ahead to 4.5 hours ahead.
When it's noon in Oslo, what time is it in Kolkata?
When it's 12:00 PM (noon) in Oslo, it is 4:30 PM in Kolkata. Use our calculator above to convert any other time.
Does the time difference between Oslo and Kolkata change?
Yes, the time difference changes throughout the year. Because Oslo observes Daylight Saving Time, the offset shifts between 3.5 hours ahead and 4.5 hours ahead at different times of the year.
What are the best times to schedule a call between Oslo and Kolkata?
The best time to call is between 9:00 AM and 1:00 PM in Oslo (which is 1:30 PM – 5:30 PM in Kolkata). This 4-hour window falls within business hours in both cities.
Is Oslo ahead or behind Kolkata?
Oslo is currently 4.5 hours behind Kolkata.
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 Kolkata?
When it is midnight (12:00 AM) in Oslo, it is 4:30 AM in Kolkata.