1.时间戳转化为时间

timestamp= 1502508104707

timeArray = time.localtime(timeStamp)

otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray)

2.获取当前时间并转化为指定格式
import time
now =int(time.time()) #当前时间戳
timeArray= time.localtime(now)

3.计算两个时间的差的秒数
time1 = datetime.datetime(2017,8,4,1,47,20)
time2 = datetime.datetime(2017,8,12,5,25,25)

substract=(time2-time1).total_seconds()

4.日期字符串转化为time对象
timeStr='2017-8-10 12:20:26'
timeObj = datetime.datetime.strptime(timeStr, "%Y-%m-%d %H:%M:%S")