Pandas dataframe datetime to time then to seconds

Question

I have a dataframe. A column contains timestamps. I would like to remove dates and convert the time to seconds.

First I converted them to datetime:

I         


        

Answer 1

Since you are converting it to datetime series, simply use basic maths to get the seconds i.e

df_time = pd.to_datetime(df["Timestamp"])

(df_time.dt.hour*60+df_time.dt.minute)*60 + df_time.dt.second

0    47340
1    47460
2    47580
3    47700
Name: Timestamp, dtype: int64