Tehran, or Teheran, is the capital of Iran and Tehran Province.
| Sunrise: | 05:56 |
| Sunset: | 15:51 |
| Transit: | 10:54 |
| Civil twilight | begin 05:28 | end 16:19 |
| Nautical twilight | begin 04:57 | end 16:50 |
| Astronomical twilight | begin 04:26 | end 17:21 |
| Day | Sunrise | Sunset | |
| Wed | (3 Dec 2025) | 05:57 | 15:51 |
| Thu | (4 Dec 2025) | 05:58 | 15:51 |
| Fri | (5 Dec 2025) | 05:59 | 15:51 |
| Sat | (6 Dec 2025) | 06:00 | 15:51 |
| Sun | (7 Dec 2025) | 06:01 | 15:51 |
| Mon | (8 Dec 2025) | 06:01 | 15:51 |
| Tue | (9 Dec 2025) | 06:02 | 15:51 |
| Latitude: | 35°39' North |
| Longitude: | 51°27' East |
Standard time is followed year around in Tehran.
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Greenwich Mean Time (GMT) is originally referring to mean solar time at the Royal Observatory in Greenwich, London. GMT and Coordinated Universal Time (UTC) can be seen equivalent when fractions of a second are not important. |