:meth:`extract_date`, :meth:`valid_datetime`.
>>> to_datetime('7/20/1969 02:56 GMT')
datetime.datetime(1969, 7, 20, 2, 56, tzinfo=<StaticTzInfo 'GMT'>)
"""
:meth:`extract_date`, :meth:`valid_datetime`.
>>> to_datetime('7/20/1969 02:56 GMT')
datetime.datetime(1969, 7, 20, 2, 56, tzinfo=<StaticTzInfo 'GMT'>)
"""