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title: "Sunrise Sunset Timer"
canonical: "https://docs.cuesystem.com/space/CVCAPPLETS/440205313/Sunrise%20Sunset%20Timer"
format: markdown
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> Macro (toc)

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SunriseSunsetTimer is a Cue Visual Composer (CVC) **applet**, which makes it possible to calculate sunrise and sunset times and generate events at these times. Calculations are based on an algorithm published on the following pages: [http://williams.best.vwh.net/sunrise_sunset_algorithm.htm](http://williams.best.vwh.net/sunrise_sunset_algorithm.htm).

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#### The source of this algorithm is:

Almanac for Computers, 1990

published by Nautical Almanac Office

United States Naval Observatory

Washington, DC 20392

This document has been created for system integrators to use this applet within the Cue System.

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# Requirements

- Software Cue Visual Composer 1.30.086 or higher