python时间日期与时间戳的转换_时间日期转时间戳python

在编写代码时，经常涉及时间、日期、时间戳的相互转换，这里汇总一下，用的是python3

用到的模块

import time, datetime

1、str类型的日期转换为时间戳

# str类型的时间
time1 = '2020-05-20 13:14:00'
# 转为时间数组
timeArray = time.strptime(time1, "%Y-%m-%d %H:%M:%S")
print(timeArray) # 1381419600
# timeArray可以调用tm_year等
print(timeArray.tm_year) # 2020
print(timeArray.tm_wday) # 2
 
# 转为时间戳
timeStamp = int(time.mktime(timeArray))
print(timeStamp) # 1589951640

2、更改str类型日期的显示格式

time2 = "2020-05-20 13:14:00"
# 转为数组
timeArray = time.strptime(time2, "%Y-%m-%d %H:%M:%S")
 
# 转为其它显示格式
otherStyleTime = time.strftime("%Y/%m/%d %H:%M:%S", timeArray)
print(otherStyleTime) # 2020/05/20 13:14:00
 
otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray)
print(otherStyleTime) # 2020-05-20 13:14:00

3、时间戳转换为指定格式的日期

# 使用time
timeStamp = 1589951640
timeArray = time.localtime(timeStamp)
otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray)
print(otherStyleTime)   # 2020-05-20 13:14:00
 
# 使用datetime
dateArray = datetime.datetime.fromtimestamp(timeStamp)
otherStyleTime = dateArray.strftime("%Y-%m-%d %H:%M:%S")
print(otherStyleTime)   # 2020-05-20 13:14:00
 
# 使用datetime，指定utc时间，相差8小时
dateArray = datetime.datetime.utcfromtimestamp(timeStamp)
otherStyleTime = dateArray.strftime("%Y-%m-%d %H:%M:%S")
print(otherStyleTime)   # 2020-05-20 05:14:00

4、获取当前时间并且用指定格式显示

# time获取当前时间戳
now = int(time.time())
timeArray = time.localtime(now)
print(timeArray)
otherStyleTime = time.strftime("%Y--%m--%d %H:%M:%S", timeArray)
print(otherStyleTime)    
# time.struct_time(tm_year=2020, tm_mon=5, tm_mday=21, tm_hour=8, tm_min=41, tm_sec=48, tm_wday=3, tm_yday=142, tm_isdst=0)
 
 
# datetime获取当前时间，数组格式
now = datetime.datetime.now()
print(now)
otherStyleTime = now.strftime("%Y--%m--%d %H:%M:%S")
print(otherStyleTime) 

参考：

python中时间、日期、时间戳的转换