In [1]:

    

import datetime


    

In [2]:

    

dt1 = datetime.datetime(year=2017, month=10, day=10, hour=15)


    

In [3]:

    

print(dt1)


    

    




2017-10-10 15:00:00

In [4]:

    

print(type(dt1))


    

    




<class 'datetime.datetime'>

In [5]:

    

dt2 = datetime.datetime(year=2019, month=1, day=1, hour=12)


    

In [6]:

    

print(dt2)


    

    




2019-01-01 12:00:00

In [7]:

    

td = dt2 - dt1


    

In [8]:

    

print(td)


    

    




447 days, 21:00:00

In [9]:

    

print(type(td))


    

    




<class 'datetime.timedelta'>

In [10]:

    

print(td.days)


    

    




447

In [11]:

    

print(td.seconds)


    

    




75600

In [12]:

    

print(td.microseconds)


    

    




0

In [13]:

    

print(td.total_seconds())


    

    




38696400.0

In [14]:

    

td_m = dt1 - dt2


    

In [15]:

    

print(td_m)


    

    




-448 days, 3:00:00

In [16]:

    

print(td_m.days)


    

    




-448

In [17]:

    

print(td_m.seconds)


    

    




10800

In [18]:

    

print(td_m.total_seconds())


    

    




-38696400.0

In [19]:

    

td_abs = abs(dt1 - dt2)


    

In [20]:

    

print(td_abs)


    

    




447 days, 21:00:00

In [21]:

    

print(td_abs.days)


    

    




447

In [22]:

    

print(td_abs.seconds)


    

    




75600

In [23]:

    

print(td_abs.total_seconds())


    

    




38696400.0

In [24]:

    

d1 = datetime.date(year=2017, month=10, day=10)


    

In [25]:

    

print(d1)


    

    




2017-10-10

In [26]:

    

print(type(d1))


    

    




<class 'datetime.date'>

In [27]:

    

d2 = datetime.date(year=2019, month=1, day=1)


    

In [28]:

    

print(d2)


    

    




2019-01-01

In [29]:

    

td = abs(d1 - d2)


    

In [30]:

    

print(td)


    

    




448 days, 0:00:00

In [31]:

    

print(type(td))


    

    




<class 'datetime.timedelta'>

In [32]:

    

# print(dt2 - d1)
# TypeError: unsupported operand type(s) for -: 'datetime.datetime' and 'datetime.date'


    

In [33]:

    

print(dt2.date())


    

    




2019-01-01

In [34]:

    

print(type(dt2.date()))


    

    




<class 'datetime.date'>

In [35]:

    

print(dt2.date() - d1)


    

    




448 days, 0:00:00

In [36]:

    

print(datetime.datetime.combine(d1, datetime.time()))


    

    




2017-10-10 00:00:00

In [37]:

    

print(type(datetime.datetime.combine(d1, datetime.time())))


    

    




<class 'datetime.datetime'>

In [38]:

    

print(dt2 - datetime.datetime.combine(d1, datetime.time()))


    

    




448 days, 12:00:00

In [39]:

    

print(datetime.datetime.now() - dt2)


    

    




34 days, 9:30:07.362784

In [40]:

    

print(datetime.date.today() - d2)


    

    




34 days, 0:00:00

In [41]:

    

td = datetime.timedelta(weeks=1, hours=20)


    

In [42]:

    

print(td)


    

    




7 days, 20:00:00

In [43]:

    

print(type(td))


    

    




<class 'datetime.timedelta'>

In [44]:

    

print(dt1)


    

    




2017-10-10 15:00:00

In [45]:

    

print(dt1 + td)


    

    




2017-10-18 11:00:00

In [46]:

    

print(dt1 - td)


    

    




2017-10-02 19:00:00

In [47]:

    

print(d1)


    

    




2017-10-10

In [48]:

    

print(d1 + td)


    

    




2017-10-17

In [49]:

    

print(d1 - td)


    

    




2017-10-03