IRST to EDT Converter
Quick answers
Selected conversion
3:30 pm15:30 IRST (UTC+3:30), Oct 4, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 4, 2026
IRST is 7 hours and 30 minutes ahead of EDT.
IRST and EDT examples
These examples always use IRST (UTC+3:30) and EDT (UTC-4). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
IRST is 7 hours and 30 minutes ahead of EDT.
How the time difference changes
For most of the year, IRST is 7 hours and 30 minutes ahead of EDT. At other times of the year, IRST is 8 hours and 30 minutes ahead of EST.
For most of the year, working hours of 9:00 am to 5:00 pm in IRST correspond to 1:30 am to 9:30 am in EDT. At other times of the year, working hours of 9:00 am to 5:00 pm in IRST correspond to 12:30 am to 8:30 am in EST.For most of the year, working hours of 09:00 to 17:00 in IRST correspond to 01:30 to 09:30 in EDT. At other times of the year, working hours of 09:00 to 17:00 in IRST correspond to 00:30 to 08:30 in EST.
Compare IRST time with EDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Iran Standard Time is 7 hours and 30 minutes ahead of Eastern Daylight Time.
3:30 pm15:30 in IRST is 8:00 am08:00 in EDT
IRST to EDT call time
Best time for a conference call or a meeting is between 4:30pm-5pm16:30-17:00 in IRST which corresponds to 9am-9:30am09:00-09:30 in EDT
3:30 pm15:30 Iran Standard Time (IRST). Offset UTC +3:30 hours
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
3:30 pm15:30 IRST / 8:00 am08:00 EDT
| IRST | EDT |
|---|---|
| 12:00am | 4:30pm |
| 1:00am | 5:30pm |
| 2:00am | 6:30pm |
| 3:00am | 7:30pm |
| 4:00am | 8:30pm |
| 5:00am | 9:30pm |
| 6:00am | 10:30pm |
| 7:00am | 11:30pm |
| 8:00am | 12:30am |
| 9:00am | 1:30am |
| 10:00am | 2:30am |
| 11:00am | 3:30am |
| 12:00pm | 4:30am |
| 1:00pm | 5:30am |
| 2:00pm | 6:30am |
| 3:00pm | 7:30am |
| 4:00pm | 8:30am |
| 5:00pm | 9:30am |
| 6:00pm | 10:30am |
| 7:00pm | 11:30am |
| 8:00pm | 12:30pm |
| 9:00pm | 1:30pm |
| 10:00pm | 2:30pm |
| 11:00pm | 3:30pm |
| 00:00 | 16:30 |
| 01:00 | 17:30 |
| 02:00 | 18:30 |
| 03:00 | 19:30 |
| 04:00 | 20:30 |
| 05:00 | 21:30 |
| 06:00 | 22:30 |
| 07:00 | 23:30 |
| 08:00 | 00:30 |
| 09:00 | 01:30 |
| 10:00 | 02:30 |
| 11:00 | 03:30 |
| 12:00 | 04:30 |
| 13:00 | 05:30 |
| 14:00 | 06:30 |
| 15:00 | 07:30 |
| 16:00 | 08:30 |
| 17:00 | 09:30 |
| 18:00 | 10:30 |
| 19:00 | 11:30 |
| 20:00 | 12:30 |
| 21:00 | 13:30 |
| 22:00 | 14:30 |
| 23:00 | 15:30 |
Iran Standard Time
Offset: IRST is 3 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: Iran
Principal Cities: The largest city in the IRST time zone is Tehran in Iran, with about 7.153 million people. Other major cities in this time zone include Mashhad, Isfahan, Karaj, Tabriz.
Daylight Saving: Clocks in Iran Standard Time (IRST) do not change for daylight saving time, so IRST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
IRST representations, usage and related time zones
- +0330 - basic
- +03:30 - extended
- +0330 - sign character (+) followed by a four digit time providing hours (03) and minutes (30) of the offset. Indicates an offset of three hours and thirty minutes to the east of the zero meridian.
Eastern Daylight Time
Offset: EDT is 4 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Bahamas, Canada, Haiti, Turks & Caicos Is, United States
Principal Cities: The largest city in the EDT time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Brooklyn, Borough of Queens, Montreal.
French: HAE - Heure Avancée de l'Est
Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste
Daylight Saving: Eastern Daylight Time (EDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Eastern Standard Time (EST).
Start: Eastern Daylight Time (EDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
End: Eastern Daylight Time (EDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.
EDT representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
- Quebec - Military abbreviation for EDT
- Q - short form of 'Quebec'
- 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/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST5EDT
- US/East-Indiana
- US/Eastern
- US/Michigan
- AST - Atlantic Standard Time
- EDT - Eastern Daylight Time
- AMT - Amazon Time
- BOT - Bolivia Time
- CDT - Cuba Daylight Time
- CLT - Chile Standard Time
- FKT - Falkland Island Time
- GYT - Guyana Time
- HLV - Hora Legal de Venezuela
- PYT - Paraguay Time
- Q - Quebec Time Zone
- VET - Venezuelan Standard Time