sunrise ( timestamp latitude longitude -- new-timestamp )
Calendar

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Vocabulary
calendar

Inputs

timestamp	a timestamp
latitude	a real
longitude	a real

Outputs

new-timestamp

a timestamp

Word description
Calculates the time of sunrise on the given day at the given location in the given timezone.

Definition

USING: calendar.private math ;

IN: calendar

: sunrise ( timestamp latitude longitude -- new-timestamp )
    [ + ] (sunrise/sunset) ;