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Times shown in UTC. For your local time, add your timezone offset. Approximation — actual times may differ by a few minutes.
Sunrise & Sunset Calculator
+ North, − South
+ East, − West
A sunrise and sunset calculator computes the exact times of sunrise, sunset, and civil twilight for any location and date using astronomical formulae.
- 1Based on solar declination and hour angle calculations
- 2Input: latitude, longitude, and date
- 3Civil twilight: sun is 6° below horizon (sufficient light for outdoor activities)
- 4Day length = sunset time − sunrise time
London (51.5°N, 0.1°W), 21 June 2026=Sunrise ≈ 04:43 BST; Sunset ≈ 21:21 BST; Day length ≈ 16h 38min
| Date | Sunrise (BST/GMT) | Sunset | Day length |
|---|---|---|---|
| 21 Dec (winter) | 08:02 GMT | 15:58 GMT | 7h 56min |
| 20 Mar (equinox) | 06:12 GMT | 18:16 GMT | ~12h |
| 21 Jun (summer) | 04:43 BST | 21:21 BST | 16h 38min |
| 23 Sep (equinox) | 06:54 BST | 19:01 BST | ~12h |
References
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