Free public API

Sunrise and sunset times API for any location and day

Golden sunset over layered clouds representing sunrise and sunset data

Retrieve sunrise, sunset, solar noon, and day length data using latitude and longitude. The API returns lightweight JSON, supports optional date lookups, and is simple to use from web, mobile, backend, and automation workflows.

Start with the endpoint See response format

Coordinate based Use latitude and longitude worldwide.

Date aware Query today or provide a specific date.

JSON output Built for direct app integration.

Why developers use this sunrise sunset API

This page is designed to answer the search intent behind queries like sunrise API, sunset API, solar noon API, and free API for sunrise and sunset times. It gives a direct endpoint, clear parameter rules, and a predictable response structure.

Use cases

Weather and astronomy applications
Smart home and lighting schedules
Photography, outdoor, and travel tools
Backend jobs and location-based automations

Returned values

Sunrise time
Sunset time
Solar noon
Day length

Implementation notes

CORS enabled for browser clients
No signup flow on the landing page
Simple query string parameters
Fast to test with cURL or fetch

API reference

Use the endpoint below to request sunrise and sunset data for any latitude and longitude pair.

Endpoint

GET /api?lat=55.8355&lng=13.3019

lat: latitude between -90 and 90
lng: longitude between -180 and 180
date: optional YYYY-MM-DD value

Example requests

/api?lat=40.7128&lng=-74.0060

/api?lat=40.7128&lng=-74.0060&date=2026-04-25

The second request fetches sunrise and sunset data for a specific date.

cURL examples

curl "https://your-domain.com/api?lat=40.7128&lng=-74.0060"
curl "https://your-domain.com/api?lat=40.7128&lng=-74.0060&date=2026-04-25"

Example response

{
	"results": {
		"sunrise": "2026-04-25T10:02:45+00:00",
		"sunset": "2026-04-25T23:48:10+00:00",
		"solar_noon": "2026-04-25T16:55:28+00:00",
		"day_length": "13:45:25"
	},
	"status": "OK",
	"tzid": "UTC"
}