Sunrise-Sunset times

Sunrise, sunset, solar noon and twilight times for a place and date.

What it gives you

Sunrise, sunset, solar noon and twilight times for a place and date. With formatted=0 the times are in ISO 8601 format in UTC.

Terms and limits

The documentation says the API is free to use with no sign-up or key, and that attribution is required: show a visible link to sunrise-sunset.org on the page where you show the data. The page describes a newer version 2, and says the version 1 address used here is unchanged and supported.

_Read on 14 November 2026 from sunrise-sunset.org/api._

Good habits

1. Cache answers that do not change often.
2. Handle errors: the service may be busy or down.
3. Give credit where the terms ask for it.
4. Do not put secret keys into a web page: this API needs none, but many others do.

The same request in code

curl

curl -L "https://api.sunrise-sunset.org/json?lat=30.9&lng=75.85&formatted=0"

Python

import json, urllib.request

with urllib.request.urlopen("https://api.sunrise-sunset.org/json?lat=30.9&lng=75.85&formatted=0") as r:
    data = json.load(r)
print(data['results'])

JavaScript (browser or Node.js)

const res = await fetch("https://api.sunrise-sunset.org/json?lat=30.9&lng=75.85&formatted=0");
const data = await res.json();
console.log(data.results);

A real answer

This is what the example request above returned when we called it on 14 November 2026 with the default values (it took about 0.5 s from our computer). Values such as times and temperatures change.

{
  "results": {
    "sunrise": "2026-11-14T01:22:14+00:00",
    "sunset": "2026-11-14T11:59:44+00:00",
    "solar_noon": "2026-11-14T06:40:59+00:00",
    "day_length": 38250,
    "civil_twilight_begin": "2026-11-14T00:56:49+00:00",
    "civil_twilight_end": "2026-11-14T12:25:09+00:00",
    "nautical_twilight_begin": "2026-11-14T00:27:43+00:00",
    "nautical_twilight_end": "2026-11-14T12:54:15+00:00",
    "astronomical_twilight_begin": "2026-11-13T23:59:03+00:00",
    "astronomical_twilight_end": "2026-11-14T13:22:55+00:00"
  },
  "status": "OK",
  "tzid": "UTC"
}

This is an independent directory. It is not connected with any of the services listed. Each address was called on 14 November 2026 with curl, Python, Node.js and Chrome (from a page on another site), and the answer shown is a real one. APIs change: check the service's own page before you depend on it.