Time Difference: Sydney vs Tehran
Sydney
5:23:51 PM AEST
Thursday, May 14, 2026
6h 30m
6h 30m
Tehran
10:53:51 AM IRST
Thursday, May 14, 2026
Tehran is 6.5 hours behind Sydney.
Quick Reference
- Sydney
- AEST (GMT+10)
AEDT starts on Oct 3, 2026
- Tehran
- IRST (GMT+3:30)
No Daylight Saving Time
Frequently Asked Questions
- What is the time difference between Sydney and Tehran?
- Tehran is 6.5 hours behind Sydney.
- When is the best time to call from Sydney 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. Sydney uses AEST and Tehran uses IRST.