| Current: | IRST — Iran Standard Time |
|---|---|
| Current Offset: | UTC/GMT +3:30 hours |
| Difference: | 7:30 hours ahead of Columbus |
2018 Time Zones - Tehran
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
The graph above illustrates clock changes in Tehran during 2018.
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 |
|---|---|---|---|---|
| 2010 | Mon, Mar 22 at 12:00 am | IRST → IRDT | +1 hour (DST start) | UTC+4:30h |
| Wed, Sep 22 at 12:00 am | IRDT → IRST | -1 hour (DST end) | UTC+3:30h | |
| 2011 | Tue, Mar 22 at 12:00 am | IRST → IRDT | +1 hour (DST start) | UTC+4:30h |
| Thu, Sep 22 at 12:00 am | IRDT → IRST | -1 hour (DST end) | UTC+3:30h | |
| 2012 | Wed, Mar 21 at 12:00 am | IRST → IRDT | +1 hour (DST start) | UTC+4:30h |
| Fri, Sep 21 at 12:00 am | IRDT → IRST | -1 hour (DST end) | UTC+3:30h | |
| 2013 | Fri, Mar 22 at 12:00 am | IRST → IRDT | +1 hour (DST start) | UTC+4:30h |
| Sun, Sep 22 at 12:00 am | IRDT → IRST | -1 hour (DST end) | UTC+3:30h | |
| 2014 | Sat, Mar 22 at 12:00 am | IRST → IRDT | +1 hour (DST start) | UTC+4:30h |
| Mon, Sep 22 at 12:00 am | IRDT → IRST | -1 hour (DST end) | UTC+3:30h | |
| 2015 | Sun, Mar 22 at 12:00 am | IRST → IRDT | +1 hour (DST start) | UTC+4:30h |
| Tue, Sep 22 at 12:00 am | IRDT → IRST | -1 hour (DST end) | UTC+3:30h | |
| 2016 | Mon, Mar 21 at 12:00 am | IRST → IRDT | +1 hour (DST start) | UTC+4:30h |
| Wed, Sep 21 at 12:00 am | IRDT → IRST | -1 hour (DST end) | UTC+3:30h | |
| 2017 | Wed, Mar 22 at 12:00 am | IRST → IRDT | +1 hour (DST start) | UTC+4:30h |
| Fri, Sep 22 at 12:00 am | IRDT → IRST | -1 hour (DST end) | UTC+3:30h | |
| 2018 | Thu, Mar 22 at 12:00 am | IRST → IRDT | +1 hour (DST start) | UTC+4:30h |
| Sat, Sep 22 at 12:00 am | IRDT → IRST | -1 hour (DST end) | UTC+3:30h | |
| 2019 | Fri, Mar 22 at 12:00 am | IRST → IRDT | +1 hour (DST start) | UTC+4:30h |
| Sun, Sep 22 at 12:00 am | IRDT → IRST | -1 hour (DST end) | UTC+3:30h | |
| * All times are local Tehran time. | ||||
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Tehran
Iran
4:1442pm
Thursday, April 25, 2024