Daylight & clock · Atlantic/Reykjavik
Daylight and clock changes in Reykjavík
In short
In Reykjavík the longest day of the next 12 months has 21 hours 9 minutes of daylight (21 June 2027) and the shortest 4 hours 7 minutes (21 December 2026).
On 15 November 2026 the sun rises at 09:57 and sets at 16:27 local time (GMT).
There are no clock changes in the period.
Computed with the NOAA solar equations and IANA tzdb 2026e.
Data updated
Longest day
21 h 09 min
21 Jun
Shortest day
4 h 07 min
21 Dec
Earliest sunrise
02:55
19 Jun
Latest sunset
00:04
20 Jun
Daylight through the year
Sunrise, sunset and day length by month
On the 15th of each month, in local clock time (GMT UTC+00:00).
| Month | First light | Sunrise | Solar noon | Sunset | Last light | Daylight |
|---|---|---|---|---|---|---|
| November 2026GMT | 08:56 | 09:57 | 13:12 | 16:27 | 17:27 | 6 h 31 min |
| December 2026GMT | 09:58 | 11:16 | 13:23 | 15:29 | 16:48 | 4 h 13 min |
| January 2027GMT | 09:48 | 10:55 | 13:37 | 16:19 | 17:27 | 5 h 24 min |
| February 2027GMT | 08:33 | 09:24 | 13:42 | 18:01 | 18:52 | 8 h 37 min |
| March 2027GMT | 07:00 | 07:47 | 13:37 | 19:28 | 20:15 | 11 h 41 min |
| April 2027GMT | 05:02 | 05:57 | 13:28 | 21:01 | 21:57 | 15 h 04 min |
| May 2027GMT | 02:33 | 04:14 | 13:24 | 22:37 | 00:23 | 18 h 23 min |
| June 2027GMT | All night | 02:58 | 13:28 | 00:00 | All night | 21 h 02 min |
| July 2027GMT | All night | 03:40 | 13:34 | 23:25 | All night | 19 h 45 min |
| August 2027GMT | 04:12 | 05:18 | 13:32 | 21:44 | 22:49 | 16 h 26 min |
| September 2027GMT | 06:01 | 06:50 | 13:23 | 19:55 | 20:43 | 13 h 05 min |
| October 2027GMT | 07:29 | 08:17 | 13:14 | 18:09 | 18:57 | 9 h 51 min |
First and last light are civil twilight (sun 6° below the horizon), when outdoor activities are possible without lights.
Golden hour and blue hour by month
The soft light photographers and sightseers plan around, on the 15th of each month in local clock time.
| Month | Golden hourmorning / evening | Blue hourmorning / evening |
|---|---|---|
| November | Morning 09:18–11:56Evening 14:27–17:05 | Morning 08:56–09:18Evening 17:05–17:27 |
| December | All day10:25–16:21 | Morning 09:58–10:25Evening 16:21–16:48 |
| January | All day10:12–17:03 | Morning 09:48–10:12Evening 17:03–17:27 |
| February | Morning 08:52–10:43Evening 16:42–18:33 | Morning 08:33–08:52Evening 18:33–18:52 |
| March | Morning 07:18–08:51Evening 18:24–19:57 | Morning 07:00–07:18Evening 19:57–20:15 |
| April | Morning 05:24–07:03Evening 19:55–21:34 | Morning 05:02–05:24Evening 21:34–21:57 |
| May | Morning 03:22–05:37Evening 21:13–23:31 | Morning 02:33–03:22Evening 23:31–00:23 |
| June | Overnight22:04–04:53 | None (never below −4°) |
| July | Morning 02:09–05:18Evening 21:48–00:50 | Overnight00:50–02:09 |
| August | Morning 04:40–06:29Evening 20:34–22:22 | Morning 04:12–04:40Evening 22:22–22:49 |
| September | Morning 06:20–07:53Evening 18:52–20:24 | Morning 06:01–06:20Evening 20:24–20:43 |
| October | Morning 07:47–09:27Evening 16:59–18:39 | Morning 07:29–07:47Evening 18:39–18:57 |
Golden hour: the sun between 6° above and 4° below the horizon; blue hour: between 4° and 6° below. Definitions vary between sources by a few minutes; clouds and terrain are not modelled.
Clock changes
Reykjavík
Atlantic/Reykjavik
No clock changes in this period.
Same clock as Reykjavík
- Abidjan, Côte d'Ivoire
- Casablanca, Morocco
- Dakar, Senegal
- Accra, Ghana
- Bamako, Mali
- Conakry, Guinea
- Lomé, Togo
- Ouagadougou, Burkina Faso
What the data shows
Day length in Reykjavík ranges from 4 hours 7 minutes on 21 December 2026 to 21 hours 9 minutes on 21 June 2027 — a swing of 17 hours 2 minutes.
How we calculated this: Longest and shortest sunrise-to-sunset span over every day of the period.
From 19 May 2027 to 23 July 2027 the sun sets but it never gets darker than civil twilight (white nights).
How we calculated this: Days with a sunset whose civil dusk never arrives (sun stays above 6° below the horizon).
Clocks in Reykjavík run 1 hour 42 minutes ahead of the sun at the extreme: on 3 February 2027 the sun is highest at 13:42, so mornings stay dark later and evenings light longer than the clock suggests.
How we calculated this: Largest gap between 12:00 local clock time and solar noon over the period.
In Dec 2026 to Jan 2027 the sun never climbs more than 6° above the horizon in Reykjavík, so golden-hour light lasts all day instead of two short windows — on 15 December 2026 from 10:25 to 16:21.
How we calculated this: Golden hour: sun between 6° above and 4° below the horizon; blue hour: 4°–6° below (geometric elevation of the sun’s centre, NOAA equations), on the 15th of each month. Months (15th) on which the sun's highest point stays below 6°.
The earliest sunrise is at 02:55 (19 June 2027) and the latest sunset at 00:04 (20 June 2027), local clock time.
How we calculated this: Earliest sunrise and latest sunset (local clock) over every day of the period.
Clocks in Reykjavík do not change between 1 November 2026 and the end of the period (Atlantic/Reykjavik).
How we calculated this: UTC-offset changes of Africa/Abidjan in tzdb 2026e during the period.
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