Pythonのdatetimeをちょいといじってみた

>>> import datetime
>>> datetime.datetime.now()
datetime.datetime(2010, 1, 30, 11, 49, 0, 364016)
>>> d = datetime.datetime.now()
>>> d
datetime.datetime(2010, 1, 30, 11, 49, 16, 339859)
>>> str(d)
'2010-01-30 11:49:16.339859'
>>> d.strftime("%Y%m%d%H%M%S")
'20100130114916'
>>> d2 = datetime.datetime.strptime('20100201012030', '%Y%m%d%H%M%S')
>>> d2
datetime.datetime(2010, 2, 1, 1, 20, 30)
>>> str(d2)
'2010-02-01 01:20:30'
>>> dd = d2 - d
>>> dd
datetime.timedelta(1, 48673, 660141)
>>> str(dd)
'1 day, 13:31:13.660141'
>>> dd.seconds
48673
>>> dd += datetime.timedelta(days=+1)
>>> dd
datetime.timedelta(2, 48673, 660141)
>>> str(dd)
'2 days, 13:31:13.660141'