# Sunrise & Sunset Calculator

> Calculate sunrise, sunset, twilight and day length for any latitude and longitude.

Sunrise and sunset times depend on latitude, longitude and the date, because the sun's declination changes through the year. This calculator uses the NOAA solar position algorithm to give official sunrise and sunset plus civil, nautical and astronomical twilight, golden hour, solar noon and total day length.

**URL:** https://convertto.tech/t/sunrise-sunset-calculator
**Category:** Date & Time Tools (https://convertto.tech/c/date-time-tools)
**Privacy:** Runs entirely in the browser; no upload
**Cost:** Free, no sign-up
**Last updated:** 2026-08-01

## Key facts

- **Privacy:** Runs entirely in your browser — nothing is uploaded
- **Cost:** Free, unlimited, no sign-up

## How to use

1. Set the latitude.
2. Set the longitude.
3. Enter or paste your date.
4. Choose the show times in.
5. The result appears immediately — copy or download it.

## FAQ

### Why does it say the sun never rises?

Above the Arctic or below the Antarctic Circle the sun can stay entirely above or below the horizon for days or months. When the algorithm finds no crossing, that is a real astronomical result rather than an error.

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