🌅 Sunrise & Sunset Times
Current Status
Day
Next: Sunset at 21:17
Today (2026-06-13)
Sunrise:
04:43
Sunset:
21:17
Civil Dawn:
03:56
Civil Dusk:
22:04
Daylight: 16h 33m
Tomorrow (2026-06-14)
Sunrise:
04:43
Sunset:
21:18
Civil Dawn:
03:56
Civil Dusk:
22:05
Daylight: 16h 34m
Calculation Details
Location: 51.4252°N, 0.1902°W
About the Calculation
Sunrise and sunset times are calculated using the NOAA Solar Position Calculator algorithm, which accounts for:
- Solar declination - The Sun's angle relative to Earth's equatorial plane, varying throughout the year
- Hour angle - The angle the Sun makes with the local meridian, calculated for civil twilight (-0.833°)
- Equation of time - Correction for Earth's elliptical orbit and axial tilt affecting solar noon timing
- Geographic coordinates - Your precise location for local solar calculations
The calculation provides both sunrise/sunset (when the Sun's center crosses the horizon) and civil twilight times:
- Civil Dawn - Morning civil twilight begins when the Sun is 6° below the horizon. There is sufficient light for most outdoor activities.
- Civil Dusk - Evening civil twilight ends when the Sun is 6° below the horizon. Artificial lighting becomes necessary for most activities.
- Sunrise/Sunset - The Sun's center crosses the horizon, accounting for atmospheric refraction (0.833° correction).
Note: Times are automatically calculated and displayed in UK local time, accounting for British Summer Time (BST) and Greenwich Mean Time (GMT) transitions.