如何查看星期日 5:30PM 和星期五 5:30PM 之间的时间？

Question

如何检查当前时间是否在周日 5:30 下午和周五 5:30 下午之间？

我可以单独找到日期和时间范围，但我认为时间必须与日期结合使用。

import datetime
import time

now = datetime.datetime.now()
if 0 <= now.weekday() <= 4:
    print ("It's a weekday!")
    if time(17, 30) <= now.time() <= time(17, 30):
        print "and it's in range"

Answer 1

您可以检查以下3个条件：

今天不是星期六
要么不是星期五，要么时间早于17:30
要么不是星期天，要么时间在17:30

在代码中，这相当于：

from datetime import datetime, time

now = datetime.now()

if (now.weekday != 5
    and (now.weekday != 4 or now.time() <= time(17, 30)) 
    and (now.weekday != 6 or now.time() >= time(17, 30))):
        print("In range!")

Answer 2

您可以简单地获取 5:30pm 最近星期日的日期时间，然后检查它是否恰好在 5 天内：

import datetime

now = datetime.datetime.now()
last_sunday = next((now - i * datetime.timedelta(days=1)) for i in range(7) if (now - i * datetime.timedelta(days=1)).weekday() == 6)
last_sunday_at_530 = datetime.datetime(year=last_sunday.year, month=last_sunday.month, day=last_sunday.day, hour=17, minute=30)
if (now - last_sunday_at_530) < datetime.timedelta(days=5):
    print("now is between Sunday at 5:30pm and Friday at 5:30pm")
else:
    print("Now is after 5:30pm on Friday but before Sunday at 5:30pm

如果您想反向查看（周五之后但周日之前），那么您可以简单地从 last_friday 开始，仅向前计算两天。

Answer 3

一天中的哪个时间在范围内取决于日期：

周日，5:30 下午之后的时间。
周一到周四，时间不限。
星期五，5:30之前的时间。

这导致以下代码：

import datetime

now = datetime.datetime.now()
d = now.weekday()
t = now.time()

if (
    d == 6 and t >= datetime.time(17, 30)     # Sunday
    or 0 <= d <= 3                            # Monday–Thursday
    or d == 4 and t <= datetime.time(17, 30)  # Friday
):
    print("In range")

如何查看星期日 5:30PM 和星期五 5:30PM 之间的时间？

How to check it's between Sunday 5:30PM and Friday 5:30PM?

python

datetime

python-3.x

python-datetime