Tokyo, Japan Kolkata, India
Compare time between Tokyo and Kolkata
Date
Time format
Tokyo, Japan
12:28
AM
Saturday, August 22, 2026
Kolkata, India
8:58
PM
Friday, August 21, 2026
Time Difference Timeline
See the time difference throughout the day
Day time
Night time
Time difference
3h 30m
Best time to meet
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Quick facts
Tokyo time zone: JST (UTC+9)
Kolkata time zone: IST (UTC+5:30)
Distance: Tokyo → Kolkata
Frequently Asked Questions
Tokyo is in the JST timezone (UTC+9) and Kolkata is in the IST timezone (UTC+5:30). The time difference between them is 3h 30m.
Use the timeline above to find overlapping business hours between Tokyo and Kolkata. The "Best time to meet" card highlights the window where both cities are within working hours (9 AM – 6 PM local time).
Neither Tokyo nor Kolkata observes Daylight Saving Time, so the time difference remains constant throughout the year.
Click the pencil icon next to the Tokyo clock and type any time. The Kolkata clock will update instantly, showing the exact corresponding time. You can also pick a date to account for DST changes.