Sunrise

Sunrise[] gives the time of the next sunrise for the current date and location.

Sunrise[datespec] gives the times of the next sunrise for the specified dates.

Sunrise[locationspec] gives the times of the next sunrise for the specified locations.

Sunrise[locationspec,datespec] gives the time of the next sunrise for the specified date and location.

Sunrise[{{location1,date1},{location2,date2},…}] gives the times of the next sunrise for all specified locations on the specified dates.

Sunrise[locationspec,datespec,func] uses func to determine what to return for extended locations.

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