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  1. 給開發者的 Web 技術文件
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  3. JavaScript 參考文件
  4. 標準內建物件
  5. Date
  6. Date.prototype.getUTCHours()
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Date.prototype.getUTCHours()

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 getUTCHours() 方法會根據世界協調時間回傳此日期的的小時數。

In this article

嘗試一下

const date1 = new Date("December 31, 1975, 23:15:30 GMT+11:00"); const date2 = new Date("December 31, 1975, 23:15:30 GMT-11:00"); console.log(date1.getUTCHours()); // 預期輸出：12 console.log(date2.getUTCHours()); // 預期輸出：10

語法

js
getUTCHours()

參數

無。

回傳值

一個介於 0 到 23 之間的整數，表示給定日期根據世界標準時間的小時。如果日期為無效的，則回傳 NaN。

範例

使用 getUTCHours()

以下範例將目前時間的小時部分指派給 hours 變數。

js
const today = new Date(); const hours = today.getUTCHours();

規範

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

瀏覽器相容性

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參見

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  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

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