21 Mar 2016
import datetime
datetime.datetime.now() datetime.datetime(2016, 3, 21, 4, 21, 45, 248352)
datetime.date.today() datetime.date(2016, 3, 21)
datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S") # '2016-03-21 04:26:48'
datetime.datetime.strptime("2016-03-21 04:26:48", "%Y-%m-%d %H:%M:%S") datetime.datetime(2016, 3, 21, 4, 26, 48)