How accurate are these times?

Usually within a minute or two for most places. The calculation uses the standard 90.833° solar zenith, which accounts for atmospheric refraction and the sun's disc — the same basis observatories publish. Hills, buildings and weather can shift what you see by a few minutes.

Does it handle daylight saving time?

Yes for the preset cities: results are shown in each city's real time zone, so daylight saving is applied automatically. Custom coordinates are shown in UTC, because a time zone can't be derived from coordinates alone.

The moment the sun is highest in the sky — the midpoint between sunrise and sunset. Shadows are shortest then.

What happens near the North or South Pole?

In summer the sun may never set and in winter never rise. The tool says so plainly instead of showing a fake time.

Sunrise & Sunset Calculator

Sunrise, sunset and day length for any place on Earth, on any date — computed with the standard solar-position math.

Private by design: this tool runs entirely in your browser. Your files are never uploaded to a server, and nothing is stored.

City

Or enter coordinates (decimal degrees — negative is south / west)

Date

Sunrise	—
Sunset	—
Solar noon	—
Day length	—

How to use it

Pick a city — or type coordinates. Fourteen cities are built in; anything else works with a latitude and longitude.

Choose the date. Any day, past or future — day length changes through the year.

Read the times. Sunrise, sunset, solar noon and the total day length, in the city's local time.

About sunrise and sunset times

Sunrise is the moment the sun's upper edge appears over a flat horizon; sunset is when it disappears. Both are computed here with the standard solar-position method used by the US National Oceanic and Atmospheric Administration (NOAA), which accounts for the bending of light in the atmosphere and the sun's visible disc — so the times match what you actually see, not the geometric centre of the sun.

Preset cities show times in their real local time zone, with daylight saving applied automatically. For a custom latitude/longitude there is no way to know the local time zone from coordinates alone, so those results are shown in UTC with a note saying so. Near the poles the tool tells you honestly when the sun never rises or never sets on your chosen date.

Sunrise & Sunset Calculator

How to use it

About sunrise and sunset times

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