Django基於Pycharm開發之三[LANGUAGE_CODE與TIME_ZONE]

在django/conf/global_settings.py 中，我們可以找到關於language和timezone的通用配置信息，源碼如下：

# Local time zone for this installation. All choices can be found here:

	# https://en.wikipedia.org/wiki/List_of_tz_zones_by_name (although not all
	# systems may support all possibilities). When USE_TZ is True, this is
	# interpreted as the default user time zone.
	TIME_ZONE = 'America/Chicago'
	# If you set this to True, Django will use timezone-aware datetimes.
	USE_TZ = False
	# Language code for this installation. All choices can be found here:
	# http://www.i18nguy.com/unicode/language-identifiers.html
	LANGUAGE_CODE = 'en-us'
	# Languages we provide translations for, out of the box.
	LANGUAGES = [
	('af', gettext_noop('Afrikaans')),
	('ar', gettext_noop('Arabic')),
	('ast', gettext_noop('Asturian')),
	('az', gettext_noop('Azerbaijani')),
	('bg', gettext_noop('Bulgarian')),
	('be', gettext_noop('Belarusian')),
	('bn', gettext_noop('Bengali')),
	('br', gettext_noop('Breton')),
	('bs', gettext_noop('Bosnian')),
	('ca', gettext_noop('Catalan')),
	('cs', gettext_noop('Czech')),
	('cy', gettext_noop('Welsh')),
	('da', gettext_noop('Danish')),
	('de', gettext_noop('German')),
	('dsb', gettext_noop('Lower Sorbian')),
	('el', gettext_noop('Greek')),
	('en', gettext_noop('English')),
	('en-au', gettext_noop('Australian English')),
	('en-gb', gettext_noop('British English')),
	('eo', gettext_noop('Esperanto')),
	('es', gettext_noop('Spanish')),
	('es-ar', gettext_noop('Argentinian Spanish')),
	('es-co', gettext_noop('Colombian Spanish')),
	('es-mx', gettext_noop('Mexican Spanish')),
	('es-ni', gettext_noop('Nicaraguan Spanish')),
	('es-ve', gettext_noop('Venezuelan Spanish')),
	('et', gettext_noop('Estonian')),
	('eu', gettext_noop('Basque')),
	('fa', gettext_noop('Persian')),
	('fi', gettext_noop('Finnish')),
	('fr', gettext_noop('French')),
	('fy', gettext_noop('Frisian')),
	('ga', gettext_noop('Irish')),
	('gd', gettext_noop('Scottish Gaelic')),
	('gl', gettext_noop('Galician')),
	('he', gettext_noop('Hebrew')),
	('hi', gettext_noop('Hindi')),
	('hr', gettext_noop('Croatian')),
	('hsb', gettext_noop('Upper Sorbian')),
	('hu', gettext_noop('Hungarian')),
	('ia', gettext_noop('Interlingua')),
	('id', gettext_noop('Indonesian')),
	('io', gettext_noop('Ido')),
	('is', gettext_noop('Icelandic')),
	('it', gettext_noop('Italian')),
	('ja', gettext_noop('Japanese')),
	('ka', gettext_noop('Georgian')),
	('kab', gettext_noop('Kabyle')),
	('kk', gettext_noop('Kazakh')),
	('km', gettext_noop('Khmer')),
	('kn', gettext_noop('Kannada')),
	('ko', gettext_noop('Korean')),
	('lb', gettext_noop('Luxembourgish')),
	('lt', gettext_noop('Lithuanian')),
	('lv', gettext_noop('Latvian')),
	('mk', gettext_noop('Macedonian')),
	('ml', gettext_noop('Malayalam')),
	('mn', gettext_noop('Mongolian')),
	('mr', gettext_noop('Marathi')),
	('my', gettext_noop('Burmese')),
	('nb', gettext_noop('Norwegian Bokmål')),
	('ne', gettext_noop('Nepali')),
	('nl', gettext_noop('Dutch')),
	('nn', gettext_noop('Norwegian Nynorsk')),
	('os', gettext_noop('Ossetic')),
	('pa', gettext_noop('Punjabi')),
	('pl', gettext_noop('Polish')),
	('pt', gettext_noop('Portuguese')),
	('pt-br', gettext_noop('Brazilian Portuguese')),
	('ro', gettext_noop('Romanian')),
	('ru', gettext_noop('Russian')),
	('sk', gettext_noop('Slovak')),
	('sl', gettext_noop('Slovenian')),
	('sq', gettext_noop('Albanian')),
	('sr', gettext_noop('Serbian')),
	('sr-latn', gettext_noop('Serbian Latin')),
	('sv', gettext_noop('Swedish')),
	('sw', gettext_noop('Swahili')),
	('ta', gettext_noop('Tamil')),
	('te', gettext_noop('Telugu')),
	('th', gettext_noop('Thai')),
	('tr', gettext_noop('Turkish')),
	('tt', gettext_noop('Tatar')),
	('udm', gettext_noop('Udmurt')),
	('uk', gettext_noop('Ukrainian')),
	('ur', gettext_noop('Urdu')),
	('vi', gettext_noop('Vietnamese')),
	('zh-hans', gettext_noop('Simplified Chinese')),
	('zh-hant', gettext_noop('Traditional Chinese')),
	]

在這里，我們可以找到關於language_code的縮寫，對應的關於time_zone,我們可以在這里找到相關信息

#something you want can find by https://github.com/django/django/blob/master/django/conf/global_settings.py
# Local time zone for this installation. All choices can be found here:
# https://en.wikipedia.org/wiki/List_of_tz_zones_by_name (although not all
# systems may support all possibilities). When USE_TZ is True, this is
# interpreted as the default user time zone.

TIME_ZONE

Default: 'America/Chicago'

A string representing the time zone for this installation. See the list of time zones.

Note

Since Django was first released with the TIME_ZONE set to 'America/Chicago', the global setting (used if nothing is defined in your project’s settings.py) remains 'America/Chicago' for backwards compatibility. New project templates default to 'UTC'.

Note that this isn’t necessarily the time zone of the server. For example, one server may serve multiple Django-powered sites, each with a separate time zone setting.

When USE_TZ is False, this is the time zone in which Django will store all datetimes. When USE_TZ is True, this is the default time zone that Django will use to display datetimes in templates and to interpret datetimes entered in forms.

On Unix environments (where time.tzset() is implemented), Django sets the os.environ['TZ'] variable to the time zone you specify in the TIME_ZONE setting. Thus, all your views and models will automatically operate in this time zone. However, Django won’t set the TZ environment variable if you’re using the manual configuration option as described in manually configuring settings. If Django doesn’t set the TZ environment variable, it’s up to you to ensure your processes are running in the correct environment.

Note

Django cannot reliably use alternate time zones in a Windows environment. If you’re running Django on Windows, TIME_ZONE must be set to match the system time zone.

看看官方這段的描述，所以當我們使用windows開發的時候，還是要注意以上的一些問題的。