Kolkata to Tokyo Time Difference
Tokyo is 3 hours 30 min ahead of Kolkata. When it is noon in Kolkata, it is 15.5:00 in Tokyo.
Kolkata (UTC+5:30) → Tokyo (UTC+9)
🕐 Interactive Time Explorer
When it's 23:00 in Kolkata, it's 2.5:00 in Tokyo
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Kolkata & Tokyo✓ Perfect Match (5 hours)
◐ Extended Hours (5 hours)
✈️ Travel Information
Distance
5,134 km
Est. Flight Time
~7h
Time Difference
+3.5h
Work Hours Overlap
5h
Good
🔴 Office Closed
Today 09:00
09:00 - 14:00
⏰ Quick Conversion
06:00
Kolkata
9.5:00
Tokyo
09:00
Kolkata
12.5:00
Tokyo
12:00
Kolkata
15.5:00
Tokyo
15:00
Kolkata
18.5:00
Tokyo
18:00
Kolkata
21.5:00
Tokyo
21:00
Kolkata
0.5:00
Tokyo (+1)
00:00
Kolkata
3.5:00
Tokyo
03:00
Kolkata
6.5:00
Tokyo
Frequently Asked Questions
How many hours is Kolkata behind Tokyo?
Tokyo is 3 hours 30 min ahead of Kolkata. When it is 12:00 noon in Kolkata, it is 15.5:00 in Tokyo. Kolkata operates on Asia/Kolkata (UTC+5.5), while Tokyo uses Asia/Tokyo (UTC+9).
What is the best time to call Tokyo from Kolkata?
There are 5 hours of overlapping business time (9 AM–5 PM) between Kolkata and Tokyo. The best window is 09:00–14:00 Kolkata time (12.5:00–17.5:00 in Tokyo).
Does the Kolkata to Tokyo time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between Kolkata and Tokyo
The distance between Kolkata and Tokyo is approximately 5,134 km. A direct flight typically takes around 7 hours. Your arrival clock will show local Tokyo time — use our Flight Time Calculator to predict exact arrival times.