Time Difference: New York City vs Tehran
Tehran is 7.5 hours ahead of New York City.
Quick Reference
- New York City
- EDT (GMT-4)
EST starts on Nov 1, 2026
- Tehran
- IRST (GMT+3:30)
No Daylight Saving Time
Frequently Asked Questions
- What is the time difference between New York City and Tehran?
- Tehran is 7.5 hours ahead of New York City.
- When is the best time to call from New York City to Tehran?
- The best time to call is during overlapping business hours (9 AM – 5 PM) in both cities. Use the interactive converter on this page to visually compare hours side by side.
- Does the time difference change with daylight saving time?
- The time difference may change when either city enters or exits daylight saving time. New York City uses EDT and Tehran uses IRST.