1.簡介 在編寫代碼時,往往涉及時間、日期、時間戳的相互轉換。 2.示例 # 引入模塊 import time, datetime 2.1 str類型的日期轉換為時間戳 1 # 字符類型的時間 2 tss1 = '2013-10-10 23:40:00' 3 # 轉為時間數組 4 timeArray = time.strptime(tss1, "%Y-%m-%d %H:%M:%S") 5 print timeArray 6 # timeArray可以調用tm_year等 7 print timeArray.tm_year # 2013 8 # 轉為時間戳 9 timeStamp = int(time.mktime(timeArray)) 10 print timeStamp # 1381419600 11 12 13 # 結果如下 14 time.struct_time(tm_year=2013, tm_mon=10, tm_mday=10, tm_hour=23, tm_min=40, tm_sec=0, tm_wday=3, tm_yday=283, tm_isdst=-1) 15 2013 16 1381419600 2.2 更改str類型日期的顯示格式 1 tss2 = "2013-10-10 23:40:00" 2 # 轉為數組 3 timeArray = time.strptime(tss2, "%Y-%m-%d %H:%M:%S") 4 # 轉為其它顯示格式 5 otherStyleTime = time.strftime("%Y/%m/%d %H:%M:%S", timeArray) 6 print otherStyleTime # 2013/10/10 23:40:00 7 8 tss3 = "2013/10/10 23:40:00" 9 timeArray = time.strptime(tss3, "%Y/%m/%d %H:%M:%S") 10 otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray) 11 print otherStyleTime # 2013-10-10 23:40:00 2.3 時間戳轉換為指定格式的日期 # 使用time timeStamp = 1381419600 timeArray = time.localtime(timeStamp) otherStyleTime = time.strftime("%Y--%m--%d %H:%M:%S", timeArray) print otherStyleTime # 2013--10--10 23:40:00 # 使用datetime timeStamp = 1381419600 dateArray = datetime.datetime.utcfromtimestamp(timeStamp) otherStyleTime = dateArray.strftime("%Y--%m--%d %H:%M:%S") print otherStyleTime # 2013--10--10 15:40:00 2.4 獲取當前時間並且用指定格式顯示 1 # time獲取當前時間戳 2 now = int(time.time()) # 1533952277 3 timeArray = time.localtime(now) 4 print timeArray 5 otherStyleTime = time.strftime("%Y--%m--%d %H:%M:%S", timeArray) 6 print otherStyleTime 7 8 # 結果如下 9 time.struct_time(tm_year=2018, tm_mon=8, tm_mday=11, tm_hour=9, tm_min=51, tm_sec=17, tm_wday=5, tm_yday=223, tm_isdst=0) 10 2018--08--11 09:51:17 11 12 13 # datetime獲取當前時間,數組格式 14 now = datetime.datetime.now() 15 print now 16 otherStyleTime = now.strftime("%Y--%m--%d %H:%M:%S") 17 print otherStyleTime 18 19 # 結果如下: 20 2018-08-11 09:51:17.362986 21 2018--08--11 09:51:17
===========================
time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(X))
>>> X=1480585800.00
>>> print time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(X))
2016-12-01 17:50:00
#!
/usr/bin/env python
#coding=utf-8
import,time,import,datetime
d1=datetime.datetime.now()
d3=d1 +datetime.timedelta(days =10)
printstr(d3)
printd3.ctime()
---------------------
#coding=utf-8 import time import datetime def yes_time(): #獲取當前時間 now_time = datetime.datetime.now() #當前時間減去一天 獲得昨天當前時間 yes_time = now_time + datetime.timedelta(days=-1) #格式化輸出 yes_time_str = yes_time.strftime('%Y-%m-%d %H:%M:%S') print yes_time_str # 2017-11-01 22:56:02 def dif_time(): #計算兩個時間之間差值 now_time = datetime.datetime.now() now_time = now_time.strftime('%Y-%m-%d %H:%M:%S') d1 = datetime.datetime.strptime('2017-10-16 19:21:22', '%Y-%m-%d %H:%M:%S') d2 = datetime.datetime.strptime(now_time, '%Y-%m-%d %H:%M:%S') #間隔天數 day = (d2 - d1).days #間隔秒數 second = (d2 - d1).seconds print day #17 print second #13475 注意這樣計算出的秒數只有小時之后的計算額 也就是不包含天之間差數 def unix_time(): #將python的datetime轉換為unix時間戳 dtime = datetime.datetime.now() un_time = time.mktime(dtime.timetuple()) print un_time #1509636609.0 #將unix時間戳轉換為python 的datetime unix_ts = 1509636585.0 times = datetime.datetime.fromtimestamp(unix_ts) print times #2017-11-02 23:29:45
