Closed
Description
It seems it returns different objects when passed array vs string:
In [1]: pd.to_datetime(['2012'])[0]
Out[1]: Timestamp('2012-01-01 00:00:00', tz=None)
In [2]: pd.to_datetime('2012')
Out[2]: datetime.datetime(2012, 1, 1, 0, 0)
Also worth mentioning (though different):
In [3]: pd.Timestamp('2012')
Out[3]: Timestamp('2012-06-13 00:00:00', tz=None)
Seems a little inconsistent... (cc #3859)