Kolkata to Osaka Time Difference
🇮🇳 Kolkata is currently 3.5 hours ahead of 🇯🇵 Osaka.
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Atin 🇮🇳 Kolkata→it will be—in 🇯🇵 Osaka
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Difference
+3.5h
Business overlap
5h
Distance
4,748 km
Approx. flight
5.6h
Hour-by-Hour: Kolkata to Osaka
| 🇮🇳 Kolkata | 🇯🇵 Osaka | Note |
|---|---|---|
| 12:00 AM | 3:30 AM | |
| 1:00 AM | 4:30 AM | |
| 2:00 AM | 5:30 AM | |
| 3:00 AM | 6:30 AM | |
| 4:00 AM | 7:30 AM | |
| 5:00 AM | 8:30 AM | |
| 6:00 AM | 9:30 AM | |
| 7:00 AM | 10:30 AM | |
| 8:00 AM | 11:30 AM | |
| 9:00 AM | 12:30 PM | |
| 10:00 AM | 1:30 PM | |
| 11:00 AM | 2:30 PM | |
| 12:00 PM | 3:30 PM | |
| 1:00 PM | 4:30 PM | |
| 2:00 PM | 5:30 PM | |
| 3:00 PM | 6:30 PM | |
| 4:00 PM | 7:30 PM | |
| 5:00 PM | 8:30 PM | |
| 6:00 PM | 9:30 PM | |
| 7:00 PM | 10:30 PM | |
| 8:00 PM | 11:30 PM | |
| 9:00 PM | 12:30 AM(next day) | Next day |
| 10:00 PM | 1:30 AM(next day) | Next day |
| 11:00 PM | 2:30 AM(next day) | Next day |
Daylight Saving Time (DST)
Neither Kolkata nor Osaka observes Daylight Saving Time. The time difference is always 3.5 hours ahead.
Best Meeting Times
There are 5 overlapping business hours between Kolkata and Osaka (9 AM – 6 PM in each city).
🇮🇳 Kolkata
9:00 AM – 2:00 PM
🇯🇵 Osaka
12:30 PM – 5:30 PM
Frequently Asked Questions
What is the time difference between Kolkata and Osaka?
The time difference between Kolkata and Osaka is currently 3.5 hours ahead. Kolkata uses GMT+5:30 (UTC+5:30), while Osaka uses GMT+9 (UTC+9).
When it's noon in Kolkata, what time is it in Osaka?
When it's 12:00 PM (noon) in Kolkata, it is 3:30 PM in Osaka. Use our calculator above to convert any other time.
Does the time difference between Kolkata and Osaka change?
No. The time difference between Kolkata and Osaka is always 3.5 hours ahead — neither city observes Daylight Saving Time, so the offset never changes.
What are the best times to schedule a call between Kolkata and Osaka?
The best time to call is between 9:00 AM and 2:00 PM in Kolkata (which is 12:30 PM – 5:30 PM in Osaka). This 5-hour window falls within business hours in both cities.
Is Kolkata ahead or behind Osaka?
Kolkata is currently 3.5 hours behind Osaka.
What time zone is Kolkata in?
Kolkata is in the Asia/Kolkata time zone, currently using GMT+5:30 (UTC+5:30). Kolkata does not observe Daylight Saving Time.
What time is midnight in Kolkata in Osaka?
When it is midnight (12:00 AM) in Kolkata, it is 3:30 AM in Osaka.