Bletchley
Sunrise and sunset in Bletchley
Today’s sunrise, sunset and twilight in Bletchley, in local time. At 52° N, the day lasts from 7 h 45 min at the winter solstice to 16 h 44 min at the summer solstice.
Today · worked out at
Thursday, October 22: sunrise at 07:39, sunset at 17:54.
Day length 10 h 14 min, 3 min 50 s shorter than yesterday.
Solar noon at 12:47, with the Sun 27° above the horizon.
Times are Bletchley time (GMT+1).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 05:46 | 19:46 |
| Nautical twilight | 06:25 | 19:07 |
| Civil twilight | 07:05 | 18:28 |
| Sunrise and sunset | 07:39 | 17:54 |
| Golden hour | 07:39–08:27 | 17:06–17:54 |
Each twilight begins at the morning time and ends at the evening one.
The year in Bletchley
- Longest day: June 21, 16 h 44 min, from sunrise at 04:42 to sunset at 21:26.
- Shortest day: December 21, 7 h 45 min, from sunrise at 08:08 to sunset at 15:53.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 07:57 | 16:31 | 8 h 33 min |
| February 21 | 07:05 | 17:27 | 10 h 22 min |
| March 21 | 06:03 | 18:17 | 12 h 14 min |
| April 21 | 05:53 | 20:10 | 14 h 17 min |
| May 21 | 05:00 | 20:59 | 15 h 59 min |
| June 21 | 04:42 | 21:26 | 16 h 44 min |
| July 21 | 05:08 | 21:09 | 16 h 01 min |
| August 21 | 05:56 | 20:14 | 14 h 18 min |
| September 21 | 06:47 | 19:03 | 12 h 17 min |
| October 21 | 07:37 | 17:56 | 10 h 18 min |
| November 21 | 07:32 | 16:04 | 8 h 31 min |
| December 21 | 08:08 | 15:53 | 7 h 45 min |
Good to know
- Sunrise and sunset are when the top of the Sun meets a level horizon, allowing for the usual bending of light by the air. Hills, buildings and height shift what you see by a few minutes.
- Civil, nautical and astronomical twilight end when the Sun is 6°, 12° and 18° below the horizon. Golden hour here is the photographers’ usual definition: the Sun less than 6° above it.
- Worked out when the page loads from NOAA’s solar equations, for 52° N, 0.7° W, and accurate to about a minute.
How the layers work, where their data comes from and what they can’t tell you: Day and night, live, The Sun, Moon and planets
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