---

Self-hosted and self-sufficient function that gives you sunrise and sunset times for a date and location.

Usage

GET /?date=2026-06-21&lat=52.52&lng=13.405&timezone=Europe/Berlin

Params:

Param	Required	Description
date	yes	e.g. 2026-06-21
lat	yes	Latitude
lng	yes	Longitude
timezone	no	Defaults to UTC

Response:

{
  "timezone": "Europe/Berlin",
  "sunrise": "04:43",
  "sunset": "21:33"
}

How it works

It approximates the sun's declination through the year and basically figures out when your spot on Earth rotates into/out of sunlight.

Installation

Made for Bunny, but works anywhere that runs JS with Request/Response. Just upload index.js.

License

MIT © Kamil Wolter