擅长:python、mysql、java
<pre><code>df = pd.DataFrame({
'Day': np.array(['2010-04-24', '2012-08-20', '2016-03-06', '2016-01-02', '2010-12-21'], dtype=np.datetime64),
'Hour': np.array([17, 10, 9, 10, 4], dtype=np.int64)})
>>> pd.to_datetime(df.Day) + pd.to_timedelta(df.Hour, unit='h')
0 2010-04-24 17:00:00
1 2012-08-20 10:00:00
2 2016-03-06 09:00:00
3 2016-01-02 10:00:00
4 2010-12-21 04:00:00
dtype: datetime64[ns]
</code></pre>