There are two fields in the DataFrame:
Время Время с 10:54:55 10:30:00 11:49:15 11:30:00 17:42:45 17:30:00 18:55:46 18:30:00 20:04:01 20:00:00 The data type in the Object fields.
How to get the difference of two columns ????
df['Время'] - df ['Время с']