| Current: | IRST — Iran Standard Time |
|---|---|
| Current Offset: | UTC/GMT +3:30 hours |
| Difference: | 7:30 hours ahead of Columbus |
2024 Time Zones - Tehran
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The graph above shows that there is no clock change in Tehran during 2024.
Note that Tehran uses a special half-hour time zone.
Time Changes in Tehran Over the Years
Daylight Saving Time (DST) changes do not necessarily occur on the same date every year.
| Year | Date & Time | Abbreviation | Time Change | Offset After |
|---|---|---|---|---|
| 1970 — 1976 | No changes, UTC +3:30 hours all of the period | |||
| 1977 | Tue, Nov 1 at 12:00 am | IRST (not changed) | +0:30 hours (TZ change) | UTC+4h |
| 1978 | Tue, Mar 21 at 12:00 am | IRST → IRDT | +1 hour (DST start) | UTC+5h |
| Sat, Oct 21 at 12:00 am | IRDT → IRST | -1 hour (DST end) | UTC+4h | |
| 1979 | Mon, Jan 1 at 12:00 am | IRST (not changed) | -0:30 hours (TZ change) | UTC+3:30h |
| Wed, Mar 21 at 12:00 am | IRST → IRDT | +1 hour (DST start) | UTC+4:30h | |
| Wed, Sep 19 at 12:00 am | IRDT → IRST | -1 hour (DST end) | UTC+3:30h | |
| * All times are local Tehran time. | ||||
More Information
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Tehran
Iran
10:3047pm
Sunday, May 5, 2024