I need to compute and add the timestamp difference between two columns in seconds in the given dataframe

df = 

A                                     B          
Wed Jul 31 07:09:48 EDT 2024    Wed Jul 31 07:04:35 EDT 2024

Wed Jul 31 07:26:31 EDT 2024    Wed Jul 31 07:21:04 EDT 2024    


Need to add column C with timestamp difference of A and B in seconds
A                                     B                               C
Wed Jul 31 07:09:48 EDT 2024    Wed Jul 31 07:04:35 EDT 2024         

Wed Jul 31 07:26:31 EDT 2024    Wed Jul 31 07:21:04 EDT 2024

Any suggestions on how to compute this ?