Wolfram Function Repository
Instant-use add-on functions for the Wolfram Language
Function Repository Resource:
Compute the starting times for variations of twilight
ResourceFunction["TwilightTimes"][] computes starting times for available variations of twilight. | |
ResourceFunction["TwilightTimes"][spec] computes the starting time for the specified variation spec. | |
ResourceFunction["TwilightTimes"][spec, loc] computes the starting time as observed from loc. | |
ResourceFunction["TwilightTimes"][spec, date] computes the starting time on date. | |
ResourceFunction["TwilightTimes"][spec,loc, date] computes the starting time on date as observed from loc. |
Compute the times for all twilight variations for the current date:
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Compute the times for a specific twilight variation for the current date:
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Compute the times for a specific twilight variation for a specified date:
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Compute the times for a specific twilight variation for a specified location and date:
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Compute times for morning twilight:
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Compute times for evening twilight:
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Twilight differs depending on the time of year:
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Dates can be specified in multiple forms:
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Twilight times differ based on the specified location:
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Locations can be entities:
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Override the default time zone:
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If you go too far north/south, you may end up in a midnight sun or polar night scenario, depending on the time of year, where the Sun never sets within a 24-hour period. In such cases, the results will be missing:
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This work is licensed under a Creative Commons Attribution 4.0 International License