How to add time

Code

from datetime import datetime, timedelta                   #1
datetime.now()                                             #2
datetime.now() + timedelta(hours=10)                       #3
datetime.now() + timedelta(minutes=10)                     #4
datetime.now() + timedelta(seconds=10)                     #5

How this works - Line by Line

from datetime import datetime, timedelta             #1

Imports the datetime and timedelta classes from the datetime module

datetime.now()                                       #2

This returns a datetime object with the current time.

datetime.now() + timedelta(hours=10)                 #3

This returns a datetime object with the current time + 10 hours. 

The remaining lines should be self explanatory.  Interestingly, the timedelta class also allows you to add by days and weeks, but not by months or years.