what does time.now() do in python code example

Example 1: how to print time python

import datetime
datetime.datetime.now()
datetime.datetime(2009, 1, 6, 15, 8, 24, 78915)

print(datetime.datetime.now())
#2009-01-06 15:08:24.789150

Example 2: time current time python time.time

time.time()