Date.prototype.getUTCSeconds()

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.

getUTCSeconds() 方法根據世界時回傳指定日期的秒數。

嘗試一下

const moonLanding = new Date("July 20, 1969, 20:18:04 UTC");

console.log(moonLanding.getUTCSeconds());
// Expected output: 4

語法

js
getUTCSeconds()

返回值

Date 物件為有效日期,則根據 UTC 時間回傳一個表示秒數、介於 0 至 59 之間的整數;若為無效日期,則回傳 Number.NaN()

範例

使用 getUTCSeconds()

下列範例指派當前時間的秒數至變數 seconds

js
const today = new Date();
const seconds = today.getUTCSeconds();

規範

Specification
ECMAScript® 2025 Language Specification
# sec-date.prototype.getutcseconds

瀏覽器相容性

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