Sunset and Sunrise Times API

Accurate Sunrise & Sunset Times for Developers offers a free API for retrieving sunrise and sunset times for a specific longitude and latitude.


lat (Required): Latitude of the location in decimal degrees. Example: 38.907192
lng (Required): Longitude of the location in decimal degrees. Example: -77.036873
date (Optional): Date in YYYY-MM-DD format, you can also specify relative formats such as “today” and “tomorrow”. If not set it’ll default to today.
timezone (Optional): Set a timezone of the returned times (timezone list). By default the API will return the times in the location’s timezone. If SunriseSunset cannot validate a timezone it’ll fallback to the default which is the location’s timezone. Example: UTC
date_start (Optional): Date in YYYY-MM-DD format to specify a range, date_start will be used as a start date.
date_end (Optional): Date in YYYY-MM-DD format used to specify the end of a date range. If this is left empty and date_start is set it’ll default to the current day.


The free API is perfect for displaying sunset and sunrise times in your applications or websites using JSON. Currently we serve millions of requests a month to developers and their apps.

Requests are sent using GET parameters and returned data is in JSON format. Returned information from our database includes sunrise, sunset, first light, last light, dawn, dusk, solar noon, golden hour, day length, UTC offset, and timezone displayed. No login or authentication is required to use our free API.

You can also query up to 365 days of sunrise and sunset times with one request using the date_start and date_end parameters.

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Example Requests

Standard request:

Specific date and setting timezone request:

Date range request:

Example returned JSON data:

    "results": {
        "date": "2023-11-29",
        "sunrise": "7:06:58 AM",
        "sunset": "4:48:45 PM",
        "first_light": "5:32:42 AM",
        "last_light": "6:23:02 PM",
        "dawn": "6:37:39 AM",
        "dusk": "5:18:04 PM",
        "solar_noon": "11:57:52 AM",
        "golden_hour": "4:07:57 PM",
        "day_length": "9:41:47",
        "timezone": "America/New_York",
        "utc_offset": -300
    "status": "OK"

If you plan on using our free API you must include a link to our site.
For example “Powered by“.

You’ll also notice API URLs for each location are listed at the bottom of location pages (example: NYC). This makes it easy to get an API call URL for a specific city or point of interest. You can also use a site like to find your current location’s coordinates.

A location like the north pole won’t always have a sunrise/sunset time. If one of the sun events doesn’t exist in that location the API will return null instead of the time for the specific event.

Example Usage (Javascript)

Here’s a simple example of grabbing sunrise/sunset times for NYC using Javascript fetch.

// Coordinates for New York
const latitude = 40.71427
const longitude = -74.00597
const url = `${latitude}&lng=${longitude}`

  .then(response => response.json())
  .then(data => {
  .catch(error => console.error('Error:', error))

View full example on CodePen


  • Nov 29, 2023: Added the ability to do a date range with date_start and date_end. This allows you to get up to 1 year of sunset times at one time. Also added the date that’s being queried to the response of all SunriseSunset requests.
  • Oct 13, 2023: API response times increased again.
  • May 26, 2023: Increased speed of API responses plus added “utc_offset” to responses.
  • April 16, 2023: Stability improvements when requesting a location without first/last light. Additionally fixed a CORS issue with cached requests.
  • June 21, 2022: Added first light and last light to returned information.
  • June 17 2022: Added link to API status page.
  • June 9, 2022: API Released. Sunrise Sunset API Status Page