python中的时区程序

Question

此程序用于查找一个国家的当前时间和位置
时间，然后得到您选择的地点的时间。我需要知道如何从其他国家(如中国或代码中的国家)获得时间。

   #Eric's Amazing Trip around the world in 80 days time converter#
import time
print("Welcome to Eric's Amazing Trip around the world in 80 days time converter")
print("This program helps the user change the time on the watch as they travel")
cur=input("First enter the current country")
#Displays the country of your choosing time#
print("The current time in " + cur)
#Displays the current time in the country#
print("Current time is " + time.asctime())
print()
nex=input("Next the country your travelng to")
#This display the time of whichever country you choose#
if cur=="Italy" or "italy":
    print("The current time in " + nex + "is")
elif cur=="Egypt" or "Egypt":
    print("The current time in " + nex + "is")
elif cur=="Paris" or "Paris ":
    print("The current time in " + nex + "is")
elif cur=="China" or "china":
    print("The current time in " + nex + "is")
elif cur=="India" or "india":
    print("The current time in" + nex + "is")
elif cur=="Singapore" or "Singaspore":
    print("The current time in " + nex + "is")

Answer 1

一般来说，一个国家可以有多个时区，例如，俄罗斯有21个时区:

>>> import pytz
>>> pprint(pytz.country_timezones['ru'])
['Europe/Kaliningrad',
 'Europe/Moscow',
 'Europe/Simferopol',
 'Europe/Volgograd',
 'Europe/Samara',
 'Asia/Yekaterinburg',
 'Asia/Omsk',
 'Asia/Novosibirsk',
 'Asia/Novokuznetsk',
 'Asia/Krasnoyarsk',
 'Asia/Irkutsk',
 'Asia/Chita',
 'Asia/Yakutsk',
 'Asia/Khandyga',
 'Asia/Vladivostok',
 'Asia/Sakhalin',
 'Asia/Ust-Nera',
 'Asia/Magadan',
 'Asia/Srednekolymsk',
 'Asia/Kamchatka',
 'Asia/Anadyr']

不同的时区可能有不同的utc偏移量。

虽然在你的例子中除了中国以外所有国家都有一个单一的时区:

>>> country_codes = {country: code for code, country in pytz.country_names.items()}
>>> {c: pytz.country_timezones[country_codes[c]]
...  for c in "Italy Egypt China India Singapore".split()}
{'China': ['Asia/Shanghai', 'Asia/Urumqi'],
 'Egypt': ['Africa/Cairo'],
 'India': ['Asia/Kolkata'],
 'Italy': ['Europe/Rome'],
 'Singapore': ['Asia/Singapore']}

一旦你选择了一个特定的时区，比如Asia/Shanghai，很容易在其中找到当前时间:

#!/usr/bin/env python
from datetime import datetime
import pytz # $ pip install pytz
current_time = datetime.now(pytz.timezone('Asia/Shanghai'))
print(current_time.strftime('%Y-%m-%d %H:%M:%S %Z%z'))
# -> 2015-08-19 19:03:22 CST+0800

Answer 2

import datetime 
import pytz 
#pytz is already installed in your latest version of ide (vs code , pycharm )
#random initializes your pytz
random = datetime.datetime.now(tz=pytz.UTC)
print(random)
#actual is your own country's timezone , to find out your own country timezone do a google search
    
actual = random.astimezone(pytz.timezone('Asia/Colombo'))
print(actual)