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Tehran to Kolkata time
Use TimeInOne to convert any local time in Tehran, Iran to the corresponding time in Kolkata, India.
The conversion uses Asia/Tehran and Asia/Kolkata, including date-specific seasonal clock changes.
City Time Converter
Tehran to Kolkata Time Converter
Convert Tehran, Iran time to Kolkata, India. Compare local times, working hours and recommended meeting slots.
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Locations
About Tehran and Kolkata
Compare location details, time zones, populations and coordinates for both cities.
City information
Tehran
Iran
- Country
- Iran
- IR
- Population
- 7,153,309
- Time zone
- Asia/Tehran
- Coordinates
- 35.6944° N
- 51.4215° E
City information
Kolkata
India
- Country
- India
- IN
- Population
- 4,631,392
- Time zone
- Asia/Kolkata
- Coordinates
- 22.5626° N
- 88.3630° E
Need the reverse conversion?
Convert Kolkata time back to Tehran.
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FAQ
Tehran to Kolkata time FAQ
Common questions about the time difference, daylight-saving rules and meeting hours between Tehran and Kolkata.
What is the time difference between Tehran and Kolkata?
Kolkata is 2 hours ahead of Tehran. The exact difference can change during the year when one location changes its clocks before the other.
Is Kolkata ahead of Tehran?
Yes. Kolkata is currently 2 hours ahead of Tehran.
What time is 9:00 AM in Tehran in Kolkata?
When it is 9:00 AM in Tehran, it is 11:00:00 AM in Kolkata on the current reference date. The result can differ during another part of the year because of daylight-saving changes.
Do Tehran and Kolkata observe daylight saving time?
Tehran, Iran does not normally use a seasonal daylight-saving offset. Kolkata, India does not normally use a seasonal daylight-saving offset. TimeInOne uses the IANA zones Asia/Tehran and Asia/Kolkata for date-specific conversions.
What is the best meeting time between Tehran and Kolkata?
The next recommended working-hours overlap is 11:30 AM in Tehran and 1:30 PM in Kolkata, on Mon, Aug 17.