# Daylight Hours / Dagens Længde

A free web calculator for sunrise time, sunset time, and day length for any
location in the world. Data is computed astronomically (SunCalc library) with
no external API — accurate to the minute for any date and coordinates.

## What this site provides
- Sunrise and sunset times for today and any date
- Day length in hours and minutes
- Solar noon, civil twilight (dawn/dusk), golden hour times
- Annual day-length charts and solar calendars
- City-to-city day length comparison

## Coverage
All latitudes and longitudes worldwide. No registration required. Free to use.

## Languages
- English: https://daylighthours.app
- Danish: https://dagenslaengde.dk

## Data freshness
Sun times are calculated in real time for the requested location and date.
Content articles are updated periodically (see dateModified in page metadata).

## Shareable links
Append ?lat=<latitude>&lng=<longitude>&date=<YYYY-MM-DD>&loc=<city> to the
home page URL to link directly to sun data for any location and date.
Example: https://daylighthours.app/?lat=51.5074&lng=-0.1278&date=2026-06-21&loc=London