← 返回首页
Date.prototype.getHours() - JavaScript | MDN
HTML

HTML: Markup language

HTML reference HTML guides Markup languages
CSS

CSS: Styling language

CSS reference CSS guides Layout cookbook
JavaScriptJS

JavaScript: Scripting language

JS reference JS guides
Web APIs

Web APIs: Programming interfaces

Web API reference Web API guides
All

All web technology

Technologies Topics
Learn

Learn web development

Frontend developer course Learn HTML Learn CSS Learn JavaScript
Tools

Discover our tools

About

Get to know MDN better

Blog
Toggle sidebar
  1. 給開發者的 Web 技術文件
  2. JavaScript
  3. JavaScript 參考文件
  4. 標準內建物件
  5. Date
  6. Date.prototype.getHours()
Theme
  • OS default
  • Light
  • Dark
正體中文 (繁體)
Remember language Learn more

此頁面由社群從英文翻譯而來。了解更多並加入 MDN Web Docs 社群。

View in English Always switch to English

Date.prototype.getHours()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.

Date 實例的 getHours() 方法會根據本地時間回傳此日期的小時數。

In this article

嘗試一下

const birthday = new Date("March 13, 08 04:20"); console.log(birthday.getHours()); // 預期輸出：4

語法

js
getHours()

參數

無。

回傳值

一個介於 0 到 23 之間的整數，表示給定日期根據本地時間的小時。如果日期是無效的，則回傳 NaN。

範例

使用 getHours()

hours 變數的值為 23，基於 Date 物件 xmas95 的值。

js
const xmas95 = new Date("1995-12-25T23:15:30"); const hours = xmas95.getHours(); console.log(hours); // 23

規範

Specification
ECMAScript® 2027 Language Specification
# sec-date.prototype.gethours

瀏覽器相容性

Enable JavaScript to view this browser compatibility table.

參見

Help improve MDN

Was this page helpful to you?
Yes No
Learn how to contribute

This page was last modified on 2025年8月6日 by MDN contributors.

View this page on GitHub • Report a problem with this content
  1. 標準內建物件
  2. Date
  3. 建構子
    1. Date()
  4. 靜態方法
    1. Date.now()
    2. Date.parse()
    3. Date.UTC()
  5. 實體方法
    1. getDate()
    2. Date.prototype.getDay()
    3. getFullYear()
    4. Date.prototype.getHours()
    5. Date.prototype.getMilliseconds()
    6. Date.prototype.getMinutes()
    7. getMonth()
    8. Date.prototype.getSeconds()
    9. Date.prototype.getTime()
    10. getTimezoneOffset()
    11. getUTCDate()
    12. getUTCDay()
    13. getUTCFullYear()
    14. Date.prototype.getUTCHours()
    15. Date.prototype.getUTCMilliseconds()
    16. Date.prototype.getUTCMinutes()
    17. getUTCMonth()
    18. Date.prototype.getUTCSeconds()
    19. getYear()
    20. setDate()
    21. setFullYear()
    22. Date.prototype.setHours()
    23. setMilliseconds()
    24. setMinutes()
    25. setMonth()
    26. setSeconds()
    27. Date.prototype.setTime()
    28. setUTCDate()
    29. setUTCFullYear()
    30. Date.prototype.setUTCHours()
    31. setUTCMilliseconds()
    32. setUTCMinutes()
    33. setUTCMonth()
    34. setUTCSeconds()
    35. setYear()
    36. toDateString()
    37. toISOString()
    38. toJSON()
    39. toLocaleDateString()
    40. toLocaleString()
    41. toLocaleTimeString()
    42. toString()
    43. toTemporalInstant()
    44. toTimeString()
    45. toUTCString()
    46. valueOf()
    47. [Symbol.toPrimitive]()
  6. 繼承
  7. Object/Function
  8. 靜態方法
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call
    4. toString()
    5. [Symbol.hasInstance]()
  9. 靜態屬性
    1. displayName
    2. Function.length
    3. name
    4. prototype
    5. arguments
    6. caller
  10. 實體方法
    1. __defineGetter__()
    2. __defineSetter__()
    3. __lookupGetter__()
    4. __lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. isPrototypeOf()
    7. propertyIsEnumerable()
    8. toLocaleString()
    9. toString()
    10. valueOf()
  11. 實體屬性
    1. __proto__
    2. constructor

Your blueprint for a better internet.

MDN Contribute Developers

Visit Mozilla Corporation’s not-for-profit parent, the Mozilla Foundation.
Portions of this content are ©1998–2026 by individual mozilla.org contributors. Content available under a Creative Commons license.