Python 시간대 변환

Python 시간대 변환

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시간을 입력 한 다음 파이썬을 다른 시간대로 변환하는 빠른 방법을 찾고 있습니다 (최대 10 개의 다른 시간대).

죄송합니다. 누군가가 나를 올바른 방향으로 인도 할 수 있다면 나는 정말 감사 할 것입니다.

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가장 좋은 방법은 관심있는 "순간"을 utc-timezone-aware datetime 객체로 변환하는 것입니다 (파이썬에서는 timezone 구성 요소가 datetime 객체에 필요하지 않음 ).

그런 다음 astimezone 을 사용 하여 관심있는 시간대로 변환 할 수 있습니다 ( 참조 ).

from datetime import datetime
import pytz

utcmoment_naive = datetime.utcnow()
utcmoment = utcmoment_naive.replace(tzinfo=pytz.utc)

# print "utcmoment_naive: {0}".format(utcmoment_naive) # python 2
print("utcmoment_naive: {0}".format(utcmoment_naive))
print("utcmoment:       {0}".format(utcmoment))

localFormat = "%Y-%m-%d %H:%M:%S"

timezones = ['America/Los_Angeles', 'Europe/Madrid', 'America/Puerto_Rico']

for tz in timezones:
    localDatetime = utcmoment.astimezone(pytz.timezone(tz))
    print(localDatetime.strftime(localFormat))

# utcmoment_naive: 2017-05-11 17:43:30.802644
# utcmoment:       2017-05-11 17:43:30.802644+00:00
# 2017-05-11 10:43:30
# 2017-05-11 19:43:30
# 2017-05-11 13:43:30

따라서 현지 시간대 ( 존재 하는 시간 ) 에 관심이있는 순간을 다음과 같이 utc로 변환합니다 ( 참조 ).

localmoment_naive = datetime.strptime('2013-09-06 14:05:10', localFormat)

localtimezone = pytz.timezone('Australia/Adelaide')

try:
    localmoment = localtimezone.localize(localmoment_naive, is_dst=None)
    print("Time exists")

    utcmoment = localmoment.astimezone(pytz.utc)

except pytz.exceptions.NonExistentTimeError as e:
    print("NonExistentTimeError")

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pytz 사용

from datetime import datetime
from pytz import timezone

fmt = "%Y-%m-%d %H:%M:%S %Z%z"
timezonelist = ['UTC','US/Pacific','Europe/Berlin']
for zone in timezonelist:

    now_time = datetime.now(timezone(zone))
    print now_time.strftime(fmt)

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Python에서 한 시간대의 시간을 다른 시간대로 변환하려면 다음을 사용할datetime.astimezone() 수 있습니다 .

time_in_new_timezone = time_in_old_timezone.astimezone(new_timezone)

주어진 aware_dt( datetime일부 시간대 의 객체), 다른 시간대로 변환하고 주어진 시간 형식으로 시간을 인쇄하려면 :

#!/usr/bin/env python3
import pytz  # $ pip install pytz

time_format = "%Y-%m-%d %H:%M:%S%z"
tzids = ['Asia/Shanghai', 'Europe/London', 'America/New_York']
for tz in map(pytz.timezone, tzids):
    time_in_tz = aware_dt.astimezone(tz)
    print(f"{time_in_tz:{time_format}}")

^{경우 f""구문을 사용할 수 없습니다, 당신은 그것을 대체 할 수"".format(**vars())}

aware_dt현지 시간대의 현재 시간에서 설정할 수있는 위치 :

from datetime import datetime
import tzlocal  # $ pip install tzlocal

local_timezone = tzlocal.get_localzone()
aware_dt = datetime.now(local_timezone) # the current time

또는 현지 시간대의 입력 시간 문자열에서 :

naive_dt = datetime.strptime(time_string, time_format)
aware_dt = local_timezone.localize(naive_dt, is_dst=None)

어디 time_string처럼 보일 수있다 : '2016-11-19 02:21:42'. 에 해당합니다 time_format = '%Y-%m-%d %H:%M:%S'.

is_dst=None forces an exception if the input time string corresponds to a non-existing or ambiguous local time such as during a DST transition. You could also pass is_dst=False, is_dst=True. See links with more details at Python: How do you convert datetime/timestamp from one timezone to another timezone?

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import datetime
import pytz

def convert_datetime_timezone(dt, tz1, tz2):
    tz1 = pytz.timezone(tz1)
    tz2 = pytz.timezone(tz2)

    dt = datetime.datetime.strptime(dt,"%Y-%m-%d %H:%M:%S")
    dt = tz1.localize(dt)
    dt = dt.astimezone(tz2)
    dt = dt.strftime("%Y-%m-%d %H:%M:%S")

    return dt

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• dt: date time string
• tz1: initial time zone
• tz2: target time zone

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> convert_datetime_timezone("2017-05-13 14:56:32", "Europe/Berlin", "PST8PDT")
'2017-05-13 05:56:32'

> convert_datetime_timezone("2017-05-13 14:56:32", "Europe/Berlin", "UTC")
'2017-05-13 12:56:32'

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> pytz.all_timezones[0:10]
['Africa/Abidjan',
 'Africa/Accra',
 'Africa/Addis_Ababa',
 'Africa/Algiers',
 'Africa/Asmara',
 'Africa/Asmera',
 'Africa/Bamako',
 'Africa/Bangui',
 'Africa/Banjul',
 'Africa/Bissau']

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For Python timezone conversions, I use the handy table from the PyCon 2012 presentation by Taavi Burns.

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Please note: The first part of this answer is or version 1.x of pendulum. See below for a version 2.x answer.

I hope I'm not too late!

The pendulum library excels at this and other date-time calculations.

>>> import pendulum
>>> some_time_zones = ['Europe/Paris', 'Europe/Moscow', 'America/Toronto', 'UTC', 'Canada/Pacific', 'Asia/Macao']
>>> heres_a_time = '1996-03-25 12:03 -0400'
>>> pendulum_time = pendulum.datetime.strptime(heres_a_time, '%Y-%m-%d %H:%M %z')
>>> for tz in some_time_zones:
...     tz, pendulum_time.astimezone(tz)
...     
('Europe/Paris', <Pendulum [1996-03-25T17:03:00+01:00]>)
('Europe/Moscow', <Pendulum [1996-03-25T19:03:00+03:00]>)
('America/Toronto', <Pendulum [1996-03-25T11:03:00-05:00]>)
('UTC', <Pendulum [1996-03-25T16:03:00+00:00]>)
('Canada/Pacific', <Pendulum [1996-03-25T08:03:00-08:00]>)
('Asia/Macao', <Pendulum [1996-03-26T00:03:00+08:00]>)

Answer lists the names of the time zones that may be used with pendulum. (They're the same as for pytz.)

For version 2:

• some_time_zones is a list of the names of the time zones that might be used in a program
• heres_a_time is a sample time, complete with a time zone in the form '-0400'
• I begin by converting the time to a pendulum time for subsequent processing
• now I can show what this time is in each of the time zones in show_time_zones

...

>>> import pendulum
>>> some_time_zones = ['Europe/Paris', 'Europe/Moscow', 'America/Toronto', 'UTC', 'Canada/Pacific', 'Asia/Macao']
>>> heres_a_time = '1996-03-25 12:03 -0400'
>>> pendulum_time = pendulum.from_format('1996-03-25 12:03 -0400', 'YYYY-MM-DD hh:mm ZZ')
>>> for tz in some_time_zones:
...     tz, pendulum_time.in_tz(tz)
...     
('Europe/Paris', DateTime(1996, 3, 25, 17, 3, 0, tzinfo=Timezone('Europe/Paris')))
('Europe/Moscow', DateTime(1996, 3, 25, 19, 3, 0, tzinfo=Timezone('Europe/Moscow')))
('America/Toronto', DateTime(1996, 3, 25, 11, 3, 0, tzinfo=Timezone('America/Toronto')))
('UTC', DateTime(1996, 3, 25, 16, 3, 0, tzinfo=Timezone('UTC')))
('Canada/Pacific', DateTime(1996, 3, 25, 8, 3, 0, tzinfo=Timezone('Canada/Pacific')))
('Asia/Macao', DateTime(1996, 3, 26, 0, 3, 0, tzinfo=Timezone('Asia/Macao')))

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For Python 3.2+ simple-date is a wrapper around pytz that tries to simplify things.

If you have a time then

SimpleDate(time).convert(tz="...")

may do what you want. But timezones are quite complex things, so it can get significantly more complicated - see the the docs.

참고URL : https://stackoverflow.com/questions/10997577/python-timezone-conversion