Enhancement for _parse_dt64

_parse_dt64.py

import astropy.Time as T

def _parse_dt64(dt):
    """
    Parse a single numpy datetime64 object
    """
    # Validate (in an agnostic way) that we are getting a datetime rather than a date
    s= ((dt.astype(T.Time).timetuple()[:6]))
    return T.Time('{}-{}-{}'.format(*s))