Sunrise & sunset times

Sunrise, sunset, solar noon and day length for any coordinates and date — plus polar day/night flags.

Times shown in your device's time zone (UTC+0:00).

Calculated in this browser — your coordinates never leave the device.

Standard NOAA-style calculation (zenith 90.833°, includes refraction): within about 2 minutes of tabulated times for latitudes below 65°. Near the poles the exact day is fuzzy — mountains and weather aren't modelled.

How to use

  1. Enter latitude and longitude (or use your location).
  2. Pick a date.
  3. Read the times in your time zone.

What it supports

Standard NOAA-style calculation (zenith 90.833°, includes refraction): within ~2 minutes of tabulated times for latitudes below 65°. Polar dates are flagged; mountains and weather are not modelled.

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