Return a datetime that is the sum of a duration and a datetime. Use negative values to subtract.

Arguments:

def datetime.add(
  dt: <datetime> = None,
  years: <dec, int> = 0,
  months: <dec, int> = 0,
  days: <dec, int> = 0,
  hours: <dec, int> = 0,
  minutes: <dec, int> = 0,
  seconds: <dec, int> = 0,
):

Returns <datetime>.

Example:

now = datetime.now()
hour_from_now = datetime.add(dt=now, hours=1)