Sunrise and Sunset Calculator
Calculates sunrise, sunset, day length, and twilight times using approximate astronomical methods based on date and location.
Source / method note
This calculation uses approximate astronomical sunrise/sunset formulas based on date, latitude, longitude, timezone, and zenith angle. Civil, nautical, and astronomical twilight values are calculated approximately with different zenith angles.
Legal / official rate note
This tool is for informational purposes only. For prayer times, official observation, maritime, aviation, agriculture, security, or processes requiring scientific precision, data from authorized institutions should be used as the primary source.
