Sunrise & Sunset Calculator

Compute sunrise, solar noon, sunset and day length for any date and location using the NOAA solar position algorithm. Runs entirely in your browser — no network, no geolocation ping.

Preset locations

Date

Latitude (°)

Longitude (°)

UTC offset (hours)

NOAA solar algorithm (zenith 90.833° includes refraction and solar radius). Times are local at the chosen UTC offset — pick the offset in effect on the date (DST aware). Runs locally.