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 July 2015.
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getUTCHours() 方法根據世界時回傳指定日期的小時數。
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());
// Expected output: 12
console.log(date2.getUTCHours());
// Expected output: 10
語法
js
getUTCHours()
返回值
若 Date 物件為有效日期，則根據 UTC 時間回傳一個表示小時、介於 0 至 23 之間的整數；若為無效日期，則回傳 Number.NaN()。
範例
使用 getUTCHours()
下列範例指派當前時間的小時至變數 hours。
js
const today = new Date();
const hours = today.getUTCHours();
規範
| Specification |
|---|
| ECMAScript® 2025 Language Specification # sec-date.prototype.getutchours |