Time Difference: New York to Tehran

Summary

See the live time in New York and Tehran side by side, and convert any specific time between the two cities.

How it works

1. The page reads your browser clock to display the current local time.
2. New York follows Eastern Time: UTC-5 (EST) in winter and UTC-4 (EDT) in summer.
3. Tehran follows Iran Standard Time (IRST, UTC+3:30) in winter and Iran Daylight Time (IRDT, UTC+4:30) in summer.
4. Iran uses a non-standard 30-minute offset, so the gap between New York and Tehran is either 7.5 or 8.5 hours depending on DST in each country.
5. Enter a time in either city to instantly see the equivalent time in the other.

Use cases

• Schedule a video call between a New York office and colleagues in Tehran.
• Check whether Tehran business hours overlap with your New York workday.
• Convert a Tehran meeting invite to New York local time.
• Plan international calls without doing the half-hour offset math manually.
• Verify what time it is in Tehran before messaging a contact there.
• Coordinate project deadlines across the ET and IRST/IRDT time zones.

Frequently Asked Questions