Python datetime
import datetime
一,获取当前时间
now = datetime.datetiem.now()
输出:2018-03-02 14:36:37.775372
二,设置时间格式 .strftime(format[, tuple]) -> string,时间的格式的为datetime时间戳
now.strftime('%Y-%m-%d %H:%M:%S') 结果:2018-03-02 14:36:37
三,时间往前增加/减少一天/小时/分钟
时间增加一天(小时/分钟把days换为hours/minutes)
tomorrow = now+ datetime.timedelta(days=1)
输出:2018-03-03 14:36:37.775372
时间减少一天(小时/分钟把days换为hours/minutes)
yesterday = now+ datetime.timedelta(days=-1)
输出:2018-03-01 14:36:37.775372
四,时间减少/增加一个月
from dateutil.relativedelta import relativedelta
last_month = now + relativedelta(months=-1)
next_month = now + relativedelta(months=+1)