1. import datetime
    2. # 获取当前时间
    3. now = datetime.datetime.now()
    4. # 获取今天零点
    5. zeroToday = now - datetime.timedelta(hours=now.hour, minutes=now.minute, seconds=now.second, microseconds=now.microsecond)
    6. # 获取23:59:59
    7. lastToday = zeroToday + datetime.timedelta(hours=23, minutes=59, seconds=59)
    8. # 获取前一天的当前时间
    9. yesterdayNow = now - datetime.timedelta(hours=23, minutes=59, seconds=59)
    10. # 获取明天的当前时间
    11. tomorrowNow = now + datetime.timedelta(hours=23, minutes=59, seconds=59)
    13. print('时间差', datetime.timedelta(hours=23, minutes=59, seconds=59))
    14. print('当前时间', now)
    15. print('今天零点', zeroToday)
    16. print('获取23:59:59', lastToday)
    17. print('昨天当前时间', yesterdayNow)
    18. print('明天当前时间', tomorrowNow)
    19. 输出：
    20. 时间差 23:59:59
    21. 当前时间 2019-08-19 10:16:32.510070
    22. 今天零点 2019-08-19 00:00:00
    23. 获取23:59:59 2019-08-19 23:59:59
    24. 昨天当前时间 2019-08-18 10:16:33.510070
    25. 明天当前时间 2019-08-20 10:16:31.510070