python3 datetime module

from datetime Import datetime 

# current system time 
D = DateTime.Now ()
 Print (D)   # 2019-11-22 21 is: 20 is: 09.586674

2019-11-22 21:27:17.842169

from datetime Import datetime 

# Coordinated Universal Time Greenwich time, and we have a difference of eight hours, utc Coordinated Universal 
# Coordinated coordination 
# Universal universal 
d1 = DateTime.UtcNow ()
 Print (d1)

2019-11-22 13:27:33.084041

from datetime Import datetime 

# Create a specified time datetime 
D2 = datetime (2018, 2,. 8, 12 is,. 8,. 8, 8886 )
 Print (D2)

2018-02-08 12:08:08.008886

from datetime import datetime

# 时间格式化
d = datetime.now()
print(d)  # 2019-11-22 21:47:24.393180
print(type(d))  # <class 'datetime.datetime'>
s = d.strftime("%Y-%m-%d %H:%M:%S")
print(s)  # 2019-11-22 21:47:24

d = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
print(d)  # 2019-11-22 21:47:24

2019-11-22 21:47:24.393180
<class 'datetime.datetime'>
2019-11-22 21:47:24
2019-11-22 21:47:24

from datetime Import datetime 

# string converted into time 
str_date = INPUT ( " Please enter a time (dd-mm-format HH YYYY: the MM: the SS): " ) 
D = datetime.strptime (str_date, " % Y-M-% D% H%:% M:% S " )
 Print (D)
 Print (type (D))

Enter a time (dd-mm-format HH YYYY: the MM: the SS): 2019-11-22 12:22:22 
2019-11-22 12:22:22 
<class 'A datetime.datetime'>

from datetime Import datetime 

# calculates the time difference 
D1 = datetime (2019,. 11, 22 is, 12 is, 22 is, 22 is ) 
D2 = datetime (2019,. 11, 21 is, 12 is, 22 is, 22 is ) 
the diff = D1 - D2
 Print (diff.seconds)   # simply be calculated from the minutes and seconds 
Print (diff.total_seconds ())   # including date calculation

0
86400.0