Pandas: Return Hour from Datetime Column Directly

Question

Assume I have a DataFrame sales of timestamp values:

timestamp               sales_office
2014-01-01 09:01:00     Cincinnati
2014-01-01 09:11:00         


        

Answer 1

You can use a lambda expression, e.g:

sales['time_hour'] = sales.timestamp.apply(lambda x: x.hour)