EST to Tehran, Iran
Compare EST time with Tehran time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Eastern Daylight Time is 7 hours and 30 minutes behind IRST (Iran Standard Time)
5:00 pm17:00 in EDT is 12:30 am00:30 in Tehran, Iran
EDT to Tehran call time
Best time for a conference call or a meeting is between 9am-9:30am in EDT which corresponds to 4:30pm-5pm in Tehran
5:00 pm17:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
12:30 am00:30 IRST (Iran Standard Time) (Tehran, Iran). Offset UTC +3:30 hours
5:00 pm17:00 EDT / 12:30 am00:30 Tehran, Iran
| EDT | Tehran, Iran |
|---|---|
| 12am (midnight) | 7:30 am |
| 1am | 8:30 am |
| 2am | 9:30 am |
| 3am | 10:30 am |
| 4am | 11:30 am |
| 5am | 12:30 pm |
| 6am | 1:30 pm |
| 7am | 2:30 pm |
| 8am | 3:30 pm |
| 9am | 4:30 pm |
| 10am | 5:30 pm |
| 11am | 6:30 pm |
| 12pm (noon) | 7:30 pm |
| 1pm | 8:30 pm |
| 2pm | 9:30 pm |
| 3pm | 10:30 pm |
| 4pm | 11:30 pm |
| 5pm | 12:30 am |
| 6pm | 1:30 am |
| 7pm | 2:30 am |
| 8pm | 3:30 am |
| 9pm | 4:30 am |
| 10pm | 5:30 am |
| 11pm | 6:30 am |
| 00:00 | 07:30 |
| 01:00 | 08:30 |
| 02:00 | 09:30 |
| 03:00 | 10:30 |
| 04:00 | 11:30 |
| 05:00 | 12:30 |
| 06:00 | 13:30 |
| 07:00 | 14:30 |
| 08:00 | 15:30 |
| 09:00 | 16:30 |
| 10:00 | 17:30 |
| 11:00 | 18:30 |
| 12:00 | 19:30 |
| 13:00 | 20:30 |
| 14:00 | 21:30 |
| 15:00 | 22:30 |
| 16:00 | 23:30 |
| 17:00 | 00:30 |
| 18:00 | 01:30 |
| 19:00 | 02:30 |
| 20:00 | 03:30 |
| 21:00 | 04:30 |
| 22:00 | 05:30 |
| 23:00 | 06:30 |
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Canada, Jamaica, Cayman Islands, Mexico, Panama
Principal Cities: The largest city in the EST time zone is Kingston in Jamaica, with about 937,700 people. Other major cities in this time zone include New Kingston, Cancun, Panama, San Miguelito.
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Eastern Daylight Time (EDT).
End: Eastern Standard Time (EST) ended 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 local daylight time instead. Standard time ends annually on the second Sunday of March.
Start: Eastern Standard Time (EST) starts 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. Standard time starts annually on the first Sunday of November.
EST representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
- America/Atikokan
- America/Cancun
- America/Cayman
- America/Coral_Harbour
- America/Detroit
- America/Fort_Wayne
- America/Grand_Turk
- America/Indiana/Indianapolis
- America/Indiana/Marengo
- America/Indiana/Petersburg
- America/Indiana/Vevay
- America/Indiana/Vincennes
- America/Indiana/Winamac
- America/Indianapolis
- America/Iqaluit
- America/Jamaica
- America/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Panama
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST
- EST5EDT
- Jamaica
- US/East-Indiana
- US/Eastern
- US/Michigan
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone