Convert int64 column to datetime column in python

Question

I have a dataframe with one column 'time', which is the object int64 and looks like this:

time
202003180001043
202003180001044

And which should be converted to a datetime column:

time
2020-03-18 00:01:043
2020-03-18 00:01:044

When I run the command:

df['time'] = pd.to_datetime(df['time'], format='%Y%m%d%I%M%S')

I get the error: ValueError: unconverted data remains: 04

How canI include the last numbers?

Answer 1

Problem is %I is for hour in 12hours format, so failed. Need %H for hours in 24hours format:

df['time'] = pd.to_datetime(df['time'], format='%Y%m%d%H%M%S%f')
print (df)
                     time
0 2020-03-18 00:01:04.300
1 2020-03-18 00:01:04.400