Sunset Time Calculator
Estimate sunrise and sunset times based on date and UK latitude.
UK: 50-59°N
How We Calculate This
Solar Calculation
Declination = 23.45 x sin(360/365 x (day - 81))
Hour angle = arccos(-tan(lat) x tan(declination))
Daylight hours = 2 x Hour angle / 15
Note: These are approximate solar times. Actual clock times vary with longitude and BST/GMT.
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify conditions and use proper safety equipment outdoors.