python datetime

日期时间操作，用datetime模块就够了

 

 

   from datetime import datetime
   # current time
   print(datetime.now()) #2022-09-02 04:31:09.492407

   # init datetime
   dt = datetime(2022, 9, 2, 12, 45, 11)
   print(dt) #2022-09-02 12:45:11

   # datetime to timestamp
   dt = datetime.now()
   print(dt.timestamp()) #1662093486.622928

   # timestamp to datetime str
   print(datetime.fromtimestamp(1662093486)) #2022-09-02 12:38:06

   # str to datetime
   dt = datetime.strptime('2022-09-02 12:38:06', '%Y-%m-%d %H:%M:%S')
   print(dt)   #2022-09-02 12:38:06

   # datetime to str
   dt = datetime.now()
   print(dt.strftime('%Y-%m-%d %H:%M:%S'))

   # datetime calculation
   dt = datetime.strptime('2022-09-02 12:38:06', '%Y-%m-%d %H:%M:%S')
   print(dt + timedelta(days=1, hours=1)) #2022-09-03 13:38:06

 某个时区当前时间：

import pytz
# 所有时区
print(pytz.all_timezones)
# 指定时区
datetime.now(pytz.timezone('Hongkong')).strftime('%Y-%m-%d %H:%M:%S')

import datetime
import time
import pytz
now = datetime.datetime.now(pytz.timezone('Hongkong'))
# utc
conext["st_time"] = int((time.mktime(base_time.timetuple()))) - 8*3600

 

 

python 2 转timestamp：

坑：：用的是服务器本地时间，如果服务器设置的是utc....会把你坑死

int((time.mktime(base_time.timetuple()) + base_time.microsecond/1000000.0))