Tehran, Iran to HAR
Time Difference
IST (Iran Standard Time) is 9 hours and 30 minutes ahead of Heure Avancée des Rocheuses
2:30 am02:30 in Tehran, Iran is 5:00 pm17:00 in HAR
Tehran to HAR call time
Best time for a conference call or a meeting is between 5:30pm-6:30pm in Tehran which corresponds to 8am-9am in HAR
2:30 am02:30 IST (Iran Standard Time) (Tehran, Iran). Offset UTC +3:30 hours
5:00 pm17:00 Heure Avancée des Rocheuses (HAR). Offset UTC -6:00 hours
2:30 am02:30 Tehran, Iran / 5:00 pm17:00 HAR
| Tehran, Iran | HAR |
|---|---|
| 12am (midnight) | 2:30 pm |
| 1am | 3:30 pm |
| 2am | 4:30 pm |
| 3am | 5:30 pm |
| 4am | 6:30 pm |
| 5am | 7:30 pm |
| 6am | 8:30 pm |
| 7am | 9:30 pm |
| 8am | 10:30 pm |
| 9am | 11:30 pm |
| 10am | 12:30 am |
| 11am | 1:30 am |
| 12pm (noon) | 2:30 am |
| 1pm | 3:30 am |
| 2pm | 4:30 am |
| 3pm | 5:30 am |
| 4pm | 6:30 am |
| 5pm | 7:30 am |
| 6pm | 8:30 am |
| 7pm | 9:30 am |
| 8pm | 10:30 am |
| 9pm | 11:30 am |
| 10pm | 12:30 pm |
| 11pm | 1:30 pm |
| 0:00 | 14:30 |
| 1:00 | 15:30 |
| 2:00 | 16:30 |
| 3:00 | 17:30 |
| 4:00 | 18:30 |
| 5:00 | 19:30 |
| 6:00 | 20:30 |
| 7:00 | 21:30 |
| 8:00 | 22:30 |
| 9:00 | 23:30 |
| 10:00 | 0:30 |
| 11:00 | 1:30 |
| 12:00 | 2:30 |
| 13:00 | 3:30 |
| 14:00 | 4:30 |
| 15:00 | 5:30 |
| 16:00 | 6:30 |
| 17:00 | 7:30 |
| 18:00 | 8:30 |
| 19:00 | 9:30 |
| 20:00 | 10:30 |
| 21:00 | 11:30 |
| 22:00 | 12:30 |
| 23:00 | 13:30 |
Tehran Information
Time Zone
IRDT - Iran Daylight Time
+4:30 hours during Iran Daylight Time.
Tehran Facts
Heure Avancée des Rocheuses
Offset: HAR is 6 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Canada, Mexico, United States
Principal Cities: The largest city in the HAR timezone is Calgary from Canada with population about 1.02 million people. Other major cities in the area are Edmonton, El Paso, Denver, Albuquerque
Daylight Saving: Heure Avancée des Rocheuses (HAR) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Mountain Daylight Time (MDT).
Start: Heure Avancée des Rocheuses (HAR) started on Sunday, March 8, 2026 at 2:00 am local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am. Daylight saving starts annually the on second Sunday of March
End: Heure Avancée des Rocheuses (HAR) ends on Sunday, November 1, 2026 at 2:00 am local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am local standard time instead. Daylight saving ends annually the on first Sunday of November
HAR representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates six hour and zero minutes time differences to the west of the zero meridian.
- Sierra - Military abbreviation for HAR
- S - short form of 'Sierra'
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone