pyacs.lib.astrotime.datetime2dayno
Convert Python datetime to day of year, year, and day fraction.
- pyacs.lib.astrotime.datetime2dayno.datetime2dayno(datetime)[source]
Convert Python datetime to day of year, year, and day fraction.
- Parameters:
datetime (datetime or array-like) – Datetime instance(s).
- Returns:
year (int or ndarray) – Year.
dayno (int or ndarray) – Day of year.
ut (float or ndarray) – Day fraction.