在此页

• 构造函数
• 静态方法
• 实例方法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

Intl.DateTimeFormat object is a constructor for objects that enable language-sensitive date and time formatting.

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

构造函数

Intl.DateTimeFormat()

创建新的 DateTimeFormat 对象。

静态方法

Intl.DateTimeFormat.supportedLocalesOf()

Returns an array containing those of the provided locales that are supported without having to fall back to the runtime's default locale.

实例方法

Intl.DateTimeFormat.prototype.format()

Getter function that formats a date according to the locale and formatting options of this DateTimeFormat 对象。

Intl.DateTimeFormat.prototype.formatToParts()

返回 Array of objects representing the date string in parts that can be used for custom locale-aware formatting.

Intl.DateTimeFormat.prototype.resolvedOptions()

Returns a new object with properties reflecting the locale and formatting options computed during initialization of the object.

Intl.DateTimeFormat.prototype.formatRange()

This method receives two Dates and formats the date range in the most concise way based on the locale and options provided when instantiating DateTimeFormat .

Intl.DateTimeFormat.prototype.formatRangeToParts()

This method receives two Dates and returns an Array of objects containing the locale-specific tokens representing each part of the formatted date range.

范例

使用 DateTimeFormat

In basic use without specifying a locale, DateTimeFormat uses the default locale and default options.

var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
// toLocaleString without arguments depends on the implementation,
// the default locale, and the default time zone
console.log(new Intl.DateTimeFormat().format(date));
// → "12/19/2012" if run with en-US locale (language) and time zone America/Los_Angeles (UTC-0800)
					

使用 locales

This example shows some of the variations in localized date and time formats. In order to get the format of the language used in the user interface of your application, make sure to specify that language (and possibly some fallback languages) using the locales argument:

var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
// Results below use the time zone of America/Los_Angeles (UTC-0800, Pacific Standard Time)
// US English uses month-day-year order
console.log(new Intl.DateTimeFormat('en-US').format(date));
// → "12/19/2012"
// British English uses day-month-year order
console.log(new Intl.DateTimeFormat('en-GB').format(date));
// → "19/12/2012"
// Korean uses year-month-day order
console.log(new Intl.DateTimeFormat('ko-KR').format(date));
// → "2012. 12. 19."
// Arabic in most Arabic speaking countries uses real Arabic digits
console.log(new Intl.DateTimeFormat('ar-EG').format(date));
// → "١٩‏/١٢‏/٢٠١٢"
// for Japanese, applications may want to use the Japanese calendar,
// where 2012 was the year 24 of the Heisei era
console.log(new Intl.DateTimeFormat('ja-JP-u-ca-japanese').format(date));
// → "24/12/19"
// when requesting a language that may not be supported, such as
// Balinese, include a fallback language, in this case Indonesian
console.log(new Intl.DateTimeFormat(['ban', 'id']).format(date));
// → "19/12/2012"
					

使用 options

The date and time formats can be customized using the options argument:

var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0, 200));
// request a weekday along with a long date
var options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };
console.log(new Intl.DateTimeFormat('de-DE', options).format(date));
// → "Donnerstag, 20. Dezember 2012"
// an application may want to use UTC and make that visible
options.timeZone = 'UTC';
options.timeZoneName = 'short';
console.log(new Intl.DateTimeFormat('en-US', options).format(date));
// → "Thursday, December 20, 2012, GMT"
// sometimes you want to be more precise
options = {
  hour: 'numeric', minute: 'numeric', second: 'numeric',
  timeZone: 'Australia/Sydney',
  timeZoneName: 'short'
};
console.log(new Intl.DateTimeFormat('en-AU', options).format(date));
// → "2:00:00 pm AEDT"
// sometimes you want to be very precise
options.fractionalSecondDigits = 3;
console.log(new Intl.DateTimeFormat('en-AU', options).format(date));
// → "2:00:00.200 pm AEDT"
// sometimes even the US needs 24-hour time
options = {
  year: 'numeric', month: 'numeric', day: 'numeric',
  hour: 'numeric', minute: 'numeric', second: 'numeric',
  hour12: false,
  timeZone: 'America/Los_Angeles'
};
console.log(new Intl.DateTimeFormat('en-US', options).format(date));
// → "12/19/2012, 19:00:00"
// to specify options but use the browser's default locale, use 'default'
console.log(new Intl.DateTimeFormat('default', options).format(date));
// → "12/19/2012, 19:00:00"
// sometimes it's helpful to include the period of the day
options = {hour: "numeric", dayPeriod: "short"};
console.log(new Intl.DateTimeFormat('en-US', options).format(date));
// → 10 at night
					

The used calendar and numbering formats can also be set independently via options arguments:

var options = {calendar: 'chinese', numberingSystem: 'arab'};
var dateFormat = new Intl.DateTimeFormat('default', options);
var usedOptions = dateFormat.resolvedOptions();
console.log(usedOptions.calendar);
// → "chinese"
console.log(usedOptions.numberingSystem);
// → "arab"
console.log(usedOptions.timeZone);
// → "America/New_York" (the users default timezone)
					

规范

规范
ECMAScript 国际化 API (ECMA-402) The definition of 'Intl.DateTimeFormat' in that specification.

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet	Node.js
DateTimeFormat	Chrome 24	Edge 12	Firefox 29	IE 11	Opera 15	Safari 10	WebView Android 4.4	Chrome Android 25	Firefox Android 56	Opera Android 14	Safari iOS 10	Samsung Internet Android 1.5	nodejs 0.12 0.12 Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() 构造函数 了解更多细节。
DateTimeFormat() 构造函数	Chrome 24	Edge 12	Firefox 29	IE 11	Opera 15	Safari 10	WebView Android 4.4	Chrome Android 25	Firefox Android 56	Opera Android 14	Safari iOS 10	Samsung Internet Android 1.5	nodejs 13.0.0 13.0.0 部分支持 0.12 Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the DateTimeFormat instance silently falls back to en-US . To make full ICU (locale) data available for versions prior to 13, see Node.js documentation on the --with-intl option and how to provide the data.
format	Chrome 24	Edge 12	Firefox 29	IE 11	Opera 15	Safari 10	WebView Android 4.4	Chrome Android 25	Firefox Android 56	Opera Android 14	Safari iOS 10	Samsung Internet Android 1.5	nodejs 0.12 0.12 Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() 构造函数 了解更多细节。
formatRange	Chrome 76	Edge No	Firefox No	IE No	Opera No	Safari No	WebView Android 76	Chrome Android 76	Firefox Android No	Opera Android 54	Safari iOS No	Samsung Internet Android No	nodejs 12.9.0 12.9.0 Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() 构造函数 了解更多细节。
formatRangeToParts	Chrome 76	Edge No	Firefox No	IE No	Opera No	Safari No	WebView Android 76	Chrome Android 76	Firefox Android No	Opera Android 54	Safari iOS No	Samsung Internet Android No	nodejs 12.9.0 12.9.0 Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() 构造函数 了解更多细节。
formatToParts	Chrome 57 57 Before version 71, formatToParts() returned an object with an incorrectly cased type key of dayperiod . Version 71 and later use the specification defined dayPeriod 。见 Chromium bug 865351 .	Edge 18	Firefox 51	IE No	Opera 44 44 Before version 58, formatToParts() returned an object with an incorrectly cased type key of dayperiod . Version 58 and later use the specification defined dayPeriod 。见 Chromium bug 865351 .	Safari 11	WebView Android 57 57 Before version 71, formatToParts() returned an object with an incorrectly cased type key of dayperiod . Version 71 and later use the specification defined dayPeriod 。见 Chromium bug 865351 .	Chrome Android 57 57 Before version 71, formatToParts() returned an object with an incorrectly cased type key of dayperiod . Version 71 and later use the specification defined dayPeriod 。见 Chromium bug 865351 .	Firefox Android 56	Opera Android 43 43 Before version 50, formatToParts() returned an object with an incorrectly cased type key of dayperiod . Version 50 and later use the specification defined dayPeriod 。见 Chromium bug 865351 .	Safari iOS 11	Samsung Internet Android 7.0 7.0 Before version 71, formatToParts() returned an object with an incorrectly cased type key of dayperiod . Version 71 and later use the specification defined dayPeriod 。见 Chromium bug 865351 .	nodejs 8.0.0 8.0.0 Before version 12.0.0, formatToParts() returned an object with an incorrectly cased type key of dayperiod . Version 12.0.0 and later use the specification defined dayPeriod 。见 Chromium bug 865351 . Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() 构造函数 了解更多细节。
resolvedOptions	Chrome 24	Edge 12	Firefox 29	IE 11	Opera 15	Safari 10	WebView Android 4.4	Chrome Android 25	Firefox Android 56	Opera Android 14	Safari iOS 10	Samsung Internet Android 1.5	nodejs 0.12 0.12 Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() 构造函数 了解更多细节。
supportedLocalesOf	Chrome 24	Edge 12	Firefox 29	IE 11	Opera 15	Safari 10	WebView Android 4.4	Chrome Android 25	Firefox Android 56	Opera Android 14	Safari iOS 10	Samsung Internet Android 1.5	nodejs 13.0.0 13.0.0 部分支持 0.12 Before version 13.0.0, only the locale data for en-US is available by default. To make full ICU (locale) data available for versions prior to 13, see Node.js documentation on the --with-intl option and how to provide the data.

图例

完整支持

完整支持

不支持

不支持

见实现注意事项。

另请参阅

• Intl

元数据

• 最后修改： May 8, 2020

相关话题

1. 标准内置对象
2. Intl
3. 方法
   1. Intl.getCanonicalLocales()
4. 相关页面：
5. Collator
6. DateTimeFormat
7. ListFormat
8. NumberFormat
9. PluralRules
10. RelativeTimeFormat
11. 继承：
12. Object
13. 特性
    1. Object.prototype.__proto__
    2. Object.prototype.constructor
14. 方法
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toSource()
    10. Object.prototype.toString()
    11. Object.prototype.valueOf()
    12. Object.setPrototypeOf()