🌅 Sunrise & Sunset Calculator

Enter latitude, longitude, and a date to calculate sunrise, sunset, civil twilight (dawn/dusk), and solar noon. Use "Use My Location" to auto-fill your coordinates, or enter latitude/longitude manually.

Sun Times

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Related Tools

Want the sun's exact altitude and azimuth? Browse Date & Time Tools → · Sun Position (Altitude/Azimuth) Calculator →

GUIDE

Learn more

How is sunrise/sunset calculated?

This calculator uses the solar position formulas published by NOAA (U.S. National Oceanic and Atmospheric Administration). It computes the sun's declination and the equation of time for the given date, then — using your latitude and longitude — finds the time (relative to solar noon) at which the sun's center crosses 0.833° below the horizon (accounting for atmospheric refraction and the sun's apparent radius) for sunrise/sunset, and 6° below the horizon for civil twilight (dawn/dusk).

How the time zone is shown

Results are shown in your browser's configured local time (UTC±N). Since coordinates alone cannot determine a precise time zone, this tool intentionally shows results based on your device's clock rather than looking up a time zone for the entered location. If you need results in a different time zone, calculate from a device set to that zone.

How polar day/night is handled

At very high latitudes (near the Arctic or Antarctic circles), the sun may not set for an entire day (midnight sun) or not rise at all (polar night) depending on the season. In these cases, a normal sunrise/sunset time cannot be computed, so this tool shows a clear "midnight sun" or "polar night" message instead of an invalid value.

Frequently asked questions

How do I auto-fill my location?

Click "Use My Location" to fill in your latitude and longitude using your browser's geolocation feature. If you don't grant location access, you can still enter latitude/longitude manually to calculate.

What time zone are the results shown in?

Results are shown in the time zone currently configured on the browser/device you're viewing this page with — not derived from the entered coordinates. The UTC offset is shown alongside the times.

What happens in polar day/night regions?

At high latitudes where the sun doesn't set (midnight sun) or doesn't rise (polar night) for the whole day depending on the season, the calculator shows a "midnight sun" or "polar night" message instead of an invalid result.