github-absolute-time.user.js

// ==UserScript==
// @name         GitHub Absolute Time
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  在 GitHub 上显示绝对时间格式的时间戳
// @author       eWloYW8
// @match        *://github.com/*
// @run-at       document-idle
// @license      MIT
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    function pad2(n) {
        return n.toString().padStart(2, '0');
    }

    function formatDateString(titleText) {
        const date = new Date(titleText);
        if (isNaN(date)) return titleText;

        const year = pad2(date.getFullYear() % 100);
        const month = pad2(date.getMonth() + 1);
        const day = pad2(date.getDate());
        const hours = pad2(date.getHours());
        const minutes = pad2(date.getMinutes());

        return `${year}/${month}/${day} ${hours}:${minutes}`;
    }

    function replaceRelativeTimeElements() {
        const elements = document.querySelectorAll('relative-time[title]');
        elements.forEach(el => {
            const titleText = el.getAttribute('title');
            const formatted = formatDateString(titleText);
            const textNode = document.createTextNode(formatted);
            el.replaceWith(textNode);
        });
    }

    replaceRelativeTimeElements();

    const observer = new MutationObserver(() => {
        replaceRelativeTimeElements();
    });
    observer.observe(document.body, { childList: true, subtree: true });
})();