Enter any latitude and longitude to calculate exact sunrise, sunset, and solar noon times. Uses astronomical algorithms accurate to within 1 minute.
This calculator uses the SunCalc library by Vladimir Agafonkin, which implements the astronomical algorithms from Jean Meeus' book "Astronomical Algorithms" (1991). The same algorithms are used by professional observatories and astronomical institutions worldwide.
Calculations incorporate atmospheric refraction (0.833 degree correction) at the horizon, which accounts for the way Earth's atmosphere bends light near the horizon. This is why the sun appears above the horizon for a brief moment before it actually rises geometrically.
The calculator is accurate to within 1 minute for most locations below 70 degrees latitude. For polar regions (above 70 degrees), accuracy may decrease. You can verify results against the US Naval Observatory for your location.
Enter any latitude (from -90 to +90) and longitude (from -180 to +180) to get: sunrise time, sunset time, solar noon, total daylight duration, and golden hour windows. The calculator uses your device's local timezone for display, or you can enter coordinates manually for any location worldwide.