IRST to E Converter
Quick answers
IRST is 1 hour and 30 minutes behind E year-round.
Working hours of 9:00 am to 5:00 pm in IRST correspond to 10:30 am to 6:30 pm in E.
For example, 3:30 pm IRST is 5:00 pm E. Use the converter above to adjust the date or time and create a shareable meeting link.
Best meeting overlap: 9am-3:30pm IRST, which is 10:30am-5pm E.
Compare IRST time with E time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Iran Standard Time is 1 hour and 30 minutes behind Echo Time Zone
3:30 pm15:30 in IRST is 5:00 pm17:00 in E
IRST to E call time
Best time for a conference call or a meeting is between 9am-3:30pm in IRST which corresponds to 10:30am-5pm in E
3:30 pm15:30 Iran Standard Time (IRST). Offset UTC +3:30 hours
5:00 pm17:00 Echo Time Zone (E). Offset UTC +5:00 hours
3:30 pm15:30 IRST / 5:00 pm17:00 E
| IRST | E |
|---|---|
| 12am (midnight) | 1:30 am |
| 1am | 2:30 am |
| 2am | 3:30 am |
| 3am | 4:30 am |
| 4am | 5:30 am |
| 5am | 6:30 am |
| 6am | 7:30 am |
| 7am | 8:30 am |
| 8am | 9:30 am |
| 9am | 10:30 am |
| 10am | 11:30 am |
| 11am | 12:30 pm |
| 12pm (noon) | 1:30 pm |
| 1pm | 2:30 pm |
| 2pm | 3:30 pm |
| 3pm | 4:30 pm |
| 4pm | 5:30 pm |
| 5pm | 6:30 pm |
| 6pm | 7:30 pm |
| 7pm | 8:30 pm |
| 8pm | 9:30 pm |
| 9pm | 10:30 pm |
| 10pm | 11:30 pm |
| 11pm | 12:30 am |
| 00:00 | 01:30 |
| 01:00 | 02:30 |
| 02:00 | 03:30 |
| 03:00 | 04:30 |
| 04:00 | 05:30 |
| 05:00 | 06:30 |
| 06:00 | 07:30 |
| 07:00 | 08:30 |
| 08:00 | 09:30 |
| 09:00 | 10:30 |
| 10:00 | 11:30 |
| 11:00 | 12:30 |
| 12:00 | 13:30 |
| 13:00 | 14:30 |
| 14:00 | 15:30 |
| 15:00 | 16:30 |
| 16:00 | 17:30 |
| 17:00 | 18:30 |
| 18:00 | 19:30 |
| 19:00 | 20:30 |
| 20:00 | 21:30 |
| 21:00 | 22:30 |
| 22:00 | 23:30 |
| 23:00 | 00:30 |
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.

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.
Echo Time Zone
Offset: E is 5 hours ahead Greenwich Mean Time (GMT) and is used in Military
Daylight Saving: Clocks in Echo Time Zone (E) do not change for daylight saving time, so E stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.
E 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 east of the zero meridian.
- Echo - Military abbreviation for E
- E - short form of 'Echo'
- AMST - Armenia Summer Time
- AQTT - Aqtobe Time
- AZST - Azerbaijan Summer Time
- E - Echo Time Zone
- MAWT - Mawson Time
- MVT - Maldives Time
- ORAT - Oral Time
- PKT - Pakistan Standard Time
- TFT - French Southern and Antarctic Time
- TJT - Tajikistan Time
- TMT - Turkmenistan Time
- UZT - Uzbekistan Time
- YEKT - Yekaterinburg Time
- HMT - Heard and McDonald Islands Time
