IRST to Sāmarrā’ Time Converter
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Quick answers
Selected conversion
3:30 pm15:30 IRST (UTC+3:30), Oct 17, 2026 = 3:00 pm15:00 AST (UTC+3), Oct 17, 2026
IRST is 30 minutes ahead of Sāmarrā’.
How the time difference changes
IRST is 30 minutes ahead of Sāmarrā’ year-round.
Working hours of 9:00 am to 6:00 pm in IRST correspond to 8:30 am to 5:30 pm in Sāmarrā’.Working hours of 09:00 to 18:00 in IRST correspond to 08:30 to 17:30 in Sāmarrā’.
Compare IRST time with Sāmarrā’ time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Iran Standard Time is 30 minutes ahead of AST (Arabia Standard Time).
3:30 pm15:30 in IRST is 3:00 pm15:00 in Sāmarrā’, Iraq
IRST to Sāmarrā’ call time
Best time for a conference call or a meeting is between 9:30am-6pm09:30-18:00 in IRST which corresponds to 9am-5:30pm09:00-17:30 in Sāmarrā’
3:30 pm15:30 Iran Standard Time (IRST). Offset UTC +3:30 hours
3:00 pm15:00 AST (Arabia Standard Time) (Sāmarrā’, Iraq). Offset UTC +3:00 hours
3:30 pm15:30 IRST / 3:00 pm15:00 Sāmarrā’, Iraq
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| IRST | Sāmarrā’, Iraq |
|---|---|
| 11:30pm previous day | |
| 12:30am | |
| 1:30am | |
| 2:30am | |
| 3:30am | |
| 4:30am | |
| 5:30am | |
| 6:30am | |
| 7:30am | |
| 8:30am | |
| 9:30am | |
| 10:30am | |
| 11:30am | |
| 12:30pm | |
| 1:30pm | |
| 2:30pm | |
| 3:30pm | |
| 4:30pm | |
| 5:30pm | |
| 6:30pm | |
| 7:30pm | |
| 8:30pm | |
| 9:30pm | |
| 10:30pm | |
| 23:30 previous day | |
| 00:30 | |
| 01:30 | |
| 02:30 | |
| 03:30 | |
| 04:30 | |
| 05:30 | |
| 06:30 | |
| 07:30 | |
| 08:30 | |
| 09:30 | |
| 10:30 | |
| 11:30 | |
| 12:30 | |
| 13:30 | |
| 14:30 | |
| 15:30 | |
| 16:30 | |
| 17:30 | |
| 18:30 | |
| 19:30 | |
| 20:30 | |
| 21:30 | |
| 22:30 |
Iran Standard Time
Offset: IRST is 3 hours and 30 minutes ahead of Greenwich Mean Time (GMT).
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.