Sunrise & Sunset Calculator - Times, Day Length & Twilight for Any Place
Sunrise & Sunset Calculator
Find sunrise, sunset and twilight for any date and place
Sun Times for Anywhere
Enter coordinates, pick a city or use your location to get sunrise, sunset and solar noon.
Three Kinds of Twilight
See when it is light enough for civil twilight and when the sky is fully dark for astronomy.
Any Time Zone
Times are shown in the time zone you choose, with daylight saving handled for you.
Full Privacy
Everything is calculated in your browser; your location never leaves it.
How Sunrise and Sunset Are Calculated
The tool finds where the sun is in the sky using the NOAA solar position equations. The equation of time and the sun's declination give the moment of solar noon, and the hour angle at which the sun's centre is 90.833° from the vertical (90°, plus the sun's radius and average atmospheric refraction at the horizon) gives sunrise and sunset. Civil, nautical and astronomical twilight use 6°, 12° and 18° below the horizon.
Results are accurate to about a minute at most latitudes. Near the polar circles the sun may not rise or set at all: the tool then reports a polar day or a polar night. Mountains, tall buildings and the weather change what you actually see, and local altitude shifts the times by a little. Coordinates are in decimal degrees, with north and east positive.
Key Takeaways
- Polar cases: Reports midnight sun and polar night instead of a wrong time.
- Change from yesterday: See how much longer or shorter the day is getting.
- About a minute: Refraction and terrain can shift what you see.