Pandas - convert strings to time without date

Question

I\'ve read loads of SO answers but can\'t find a clear solution.

I have this data in a df called day1 which represents hours:

1    10:53         


        

Answer 1

After performing the conversion you can use the datetime accessor dt to access just the hour or time component:

In [51]:

df['hour'] = pd.to_datetime(df['time'], format='%H:%M').dt.hour
df
Out[51]:
        time  hour
index             
1      10:53    10
2      12:17    12
3      14:46    14
4      16:36    16
5      18:39    18
6      20:31    20
7      22:28    22

Also your format string H%:M% is malformed, it's likely to raise a ValueError: ':' is a bad directive in format 'H%:M%'

Regarding your last comment the dtype is datetime.time not datetime:

In [53]:
df['time'].iloc[0]

Out[53]:
datetime.time(10, 53)