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Chicago to Tehran time
Use TimeInOne to convert any local time in Chicago, United States to the corresponding time in Tehran, Iran.
The conversion uses America/Chicago and Asia/Tehran, including date-specific seasonal clock changes.
City Time Converter
Chicago to Tehran Time Converter
Convert Chicago, United States time to Tehran, Iran. Compare local times, working hours and recommended meeting slots.
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Locations
About Chicago and Tehran
Compare location details, time zones, populations and coordinates for both cities.
City information
Chicago
United States
- Country
- United States
- US
- Population
- 2,664,452
- Time zone
- America/Chicago
- Coordinates
- 41.8500° N
- 87.6500° W
City information
Tehran
Iran
- Country
- Iran
- IR
- Population
- 7,153,309
- Time zone
- Asia/Tehran
- Coordinates
- 35.6944° N
- 51.4215° E
Need the reverse conversion?
Convert Tehran time back to Chicago.
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FAQ
Chicago to Tehran time FAQ
Common questions about the time difference, daylight-saving rules and meeting hours between Chicago and Tehran.
What is the time difference between Chicago and Tehran?
Tehran is 8.5 hours ahead of Chicago. The exact difference can change during the year when one location changes its clocks before the other.
Is Tehran ahead of Chicago?
Yes. Tehran is currently 8.5 hours ahead of Chicago.
What time is 9:00 AM in Chicago in Tehran?
When it is 9:00 AM in Chicago, it is 5:30:00 PM in Tehran on the current reference date. The result can differ during another part of the year because of daylight-saving changes.
Do Chicago and Tehran observe daylight saving time?
Chicago, United States uses seasonal daylight-saving changes in its time-zone rules. Tehran, Iran does not normally use a seasonal daylight-saving offset. TimeInOne uses the IANA zones America/Chicago and Asia/Tehran for date-specific conversions.
What is the best meeting time between Chicago and Tehran?
The next recommended working-hours overlap is 9:00 AM in Chicago and 5:30 PM in Tehran, on Mon, Aug 17.