Sunrise and sunset UTC approximations from latitude and longitude coordinates https://github.com/intractable/horizon
|Latest on Hackage:||0.1.1|
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This package contains a Haskell module for computing approximate sunrise and
sunset UTC times from latitude and longitude.
Note that approximations are provided in UTC time only, no additional support
for time zones is implemented.
This module has only been lightly tested, and produces values close to those
found at http://aa.usno.navy.mil/data/docs/RS_OneYear.php.