When do the days get longer in Tehran? Shortest day December 22

In Tehran the shortest day is December 22 with 9h 44m of daylight. The earliest sunset is on December 5, the latest sunrise on January 7 – by February 10 the day is an hour longer.

  • The shortest day, the earliest sunset, the latest sunrise – and how quickly the light comes back, week by week.
  • Shortest day: December 22 (9h 44m)
  • Earliest sunset: December 5, 16:50
  • Latest sunrise: January 7, 07:14
  • The earliest sunset comes about ten days before the shortest day, the latest sunrise about ten days after it. The reason is the equation of time: around the solstice the sun reaches its highest point a little later every day, so the whole day shifts towards the evening. That is why the evenings are already getting lighter while the mornings are still getting darker.

Week by week after the shortest day

  • December 22: Sunrise 07:10 · Sunset 16:55 · Day length 9h 44m · Gained +0h 00m
  • December 29: Sunrise 07:13 · Sunset 16:59 · Day length 9h 46m · Gained +0h 02m
  • January 5: Sunrise 07:14 · Sunset 17:04 · Day length 9h 50m · Gained +0h 06m
  • January 12: Sunrise 07:14 · Sunset 17:11 · Day length 9h 57m · Gained +0h 13m
  • January 19: Sunrise 07:12 · Sunset 17:17 · Day length 10h 06m · Gained +0h 22m
  • January 26: Sunrise 07:08 · Sunset 17:25 · Day length 10h 16m · Gained +0h 32m
  • February 2: Sunrise 07:04 · Sunset 17:32 · Day length 10h 28m · Gained +0h 44m
  • February 9: Sunrise 06:57 · Sunset 17:39 · Day length 10h 42m · Gained +0h 58m
  • February 16: Sunrise 06:50 · Sunset 17:46 · Day length 10h 56m · Gained +1h 12m
  • February 23: Sunrise 06:42 · Sunset 17:53 · Day length 11h 11m · Gained +1h 27m
  • March 2: Sunrise 06:33 · Sunset 18:00 · Day length 11h 26m · Gained +1h 42m
  • March 9: Sunrise 06:24 · Sunset 18:06 · Day length 11h 42m · Gained +1h 58m
  • March 16: Sunrise 06:14 · Sunset 18:12 · Day length 11h 58m · Gained +2h 14m
  • March 23: Sunrise 06:04 · Sunset 18:18 · Day length 12h 14m · Gained +2h 30m
  • March 30: Sunrise 05:54 · Sunset 18:24 · Day length 12h 30m · Gained +2h 46m
  • April 6: Sunrise 05:44 · Sunset 18:29 · Day length 12h 45m · Gained +3h 01m
  • April 13: Sunrise 05:35 · Sunset 18:35 · Day length 13h 01m · Gained +3h 17m