Python 日期和时间用法超强总结

import time#timea=time.time() #total seconds since epochprint("Seconds since epoch :",a,end='n----------n')#ctimeprint("Current date and time:")print(time.ctime(a),end='n----------n') #sleeptime.sleep(1) #execution will be delayed by one second#localtimeprint("Local time :")print(time.localtime(a),end='n----------n')#gmtimeprint("Local time in UTC format :")print(time.gmtime(a),end='n-----------n')#mktimeb=(2019,8,6,10,40,34,1,218,0)print("Current Time in seconds :")print( time.mktime(b),end='n----------n')#asctimeprint("Current Time in local format :")print( time.asctime(b),end='n----------n')#strftimec = time.localtime() # get struct_timed = time.strftime("%m/%d/%Y, %H:%M:%S", c)print("String representing date and time:")print(d,end='n----------n')#strptimeprint("time.strptime parses string and returns it in struct_time format :n")e = "06 AUGUST, 2019"f = time.strptime(e, "%d %B, %Y")print(f)

Seconds since epoch : 1565070251.7134922———-Current date and time:Tue Aug 6 11:14:11 2019———-Local time :time.struct_time(tm_year=2019, tm_mon=8, tm_mday=6, tm_hour=11, tm_min=14, tm_sec=11, tm_wday=1, tm_yday=218, tm_isdst=0)———-Local time in UTC format :time.struct_time(tm_year=2019, tm_mon=8, tm_mday=6, tm_hour=5, tm_min=44, tm_sec=11, tm_wday=1, tm_yday=218, tm_isdst=0)———–Current Time in seconds :1565068234.0———-Current Time in local format :Tue Aug 6 10:40:34 2019———-String representing date and time:08/06/2019, 11:14:12———-time.strptime parses string and returns it in struct_time format :time.struct_time(tm_year=2019, tm_mon=8, tm_mday=6, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=1, tm_yday=218, tm_isdst=-1)

import datetime#datetime constructorprint("Datetime constructor:n")print(datetime.datetime(2019,5,3,8,45,30,234),end='n----------n') #todayprint("The current date and time using today :n")print(datetime.datetime.today(),end='n----------n') #nowprint("The current date and time using today :n")print(datetime.datetime.now(),end='n----------n') #dateprint("Setting date :n")print(datetime.date(2019,11,7),end='n----------n')#timeprint("Setting time :n")print(datetime.time(6,30,23),end='n----------n') #date.fromtimestampprint("Converting seconds to date and time:n")print(datetime.date.fromtimestamp(23456789),end='n----------n') #timedeltab1=datetime.timedelta(days=30, seconds=0, microseconds=0, milliseconds=0, minutes=0, hours=4, weeks=8)b2=datetime.timedelta(days=3, seconds=0, microseconds=0, milliseconds=0, minutes=0, hours=4, weeks=8)b3=b2-b1print(type(b3))print("The resultant duration = ",b3,end='n----------n') #attributesa=datetime.datetime.now() #1print(a)print("The year is :",a.year) print("Hours :",a.hour)

Datetime constructor:2019-05-03 08:45:30.000234———-The current date and time using today :2019-08-06 13:09:56.651691———-The current date and time using today :2019-08-06 13:09:56.651691———-Setting date :2019-11-07———-Setting time :06:30:23———-Converting seconds to date and time:1970-09-29———-<class>The resultant duration = -27 days, 0:00:00———-2019-08-06 13:09:56.653694The year is : 2019Hours : 13</class>