https://github.com/lwchkg/sunrise_sunset_calculator

Sunrise and sunset times calculator
https://github.com/lwchkg/sunrise_sunset_calculator

sunrise sunrise-times sunset sunset-times

Last synced: 3 months ago
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Sunrise and sunset times calculator

• Host: GitHub
• URL: https://github.com/lwchkg/sunrise_sunset_calculator
• Owner: lwchkg
• License: mit
• Created: 2023-02-01T11:41:46.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2025-06-27T00:24:04.000Z (4 months ago)
• Last Synced: 2025-06-27T00:30:00.968Z (4 months ago)
• Topics: sunrise, sunrise-times, sunset, sunset-times
• Language: Dart
• Homepage: https://lwchkg.github.io/sunrise_sunset_calculator/
• Size: 19.2 MB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Sunrise and Sunset Times App

Sunrise and sunset time calculator.



 



## How to use

1. Open the app (choose between

   [Google Play Store](https://play.google.com/store/apps/details?id=com.lwchkg.sunrise_sunset_calculator)

   or [web page](https://lwchkg.github.io/sunrise_sunset_calculator/)).

2. Allow the use of your location.

3. **If you care more about sunlight than actual sunrise and sunset (which I

   do), check the civil twilight times.**

4. Scroll down to view the sunrise and sunset times for the next 7 days.

5. For other days click “More days...”.

Note: The web page is installable.

See [Aureate: How to install PWA to your device?](https://aureatelabs.com/blog/install-pwa-to-device/) for details.

## Accuracy of sunrise and sunset times

The algorithm in

[NOAA Sunrise/Sunset and Solar Position Calculators](https://gml.noaa.gov/grad/solcalc/calcdetails.html)

is used in this app. According to its web site, “sunrise and sunset results are

theoretically accurate to within a minute for locations between +/- 72°

latitude, and within 10 minutes outside of those latitudes. However, due to

variations in atmospheric composition, temperature, pressure and conditions,

observed values may vary from calculations.”

## Screenshots

![Home screen](readme_assets/screenshot1.webp)

![Monthly info](readme_assets/screenshot2.webp)

## Similar calculators

[US Naval Observatory](https://aa.usno.navy.mil/data/RS_OneDay) - might be more

accurate than this app, especially if you live in the arctic circle.

[Stonekick Sun Position App](https://stonekick.com/sunposition.html) - more

information, but only the information of the current day is free.