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Replace "1 year ago" with exact dates (2024-11-08). Customizable formats, works everywhere on YouTube.
// ==UserScript==
// @name YouTube Full Dates (v2)
// @namespace YouTube Full Dates
// @version 2
// @description Replace "1 year ago" with exact dates (2024-11-08). Customizable formats, works everywhere on YouTube.
// @author Solomon (improved from InMirrors)
// @match https://www.youtube.com/*
// @icon https://www.youtube.com/s/desktop/814d40a6/img/favicon_144x144.png
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_addStyle
// @grant GM_registerMenuCommand
// @license MIT
// ==/UserScript==
(function() {
'use strict';
// ═══════════════════════════════════════════════════════════════════════════
// 🔧 CONFIGURATION
// ═══════════════════════════════════════════════════════════════════════════
const DEFAULT_CONFIG = {
dateFormat: 'yyyy-MM-dd',
prependDates: false,
showBothDates: true,
debugMode: false,
// Keywords for detecting relative dates
dateKeywords: ['second', 'minute', 'hour', 'day', 'week', 'month', 'year',
'秒', '分', '时', '時', '天', '日', '周', '週', '月', '年'],
agoKeywords: ['ago', '前'],
oldUploadKeywords: ['day', 'week', 'month', 'year', '天', '日', '周', '週', '月', '年'],
monthNames: ['JAN', 'FEB', 'MAR', 'APR', 'MAY', 'JUN', 'JUL', 'AUG', 'SEP', 'OCT', 'NOV', 'DEC'],
dayNames: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']
};
// Merge saved settings with defaults
const SETTINGS = { ...DEFAULT_CONFIG, ...GM_getValue('settings', {}) };
// Processing marker (zero-width space)
const PROCESSED = '\u200B';
// Cache for API responses
const dateCache = new Map();
// ═══════════════════════════════════════════════════════════════════════════
// 📊 STATE
// ═══════════════════════════════════════════════════════════════════════════
let isProcessing = false;
let pendingRequests = 0;
const MAX_CONCURRENT = 5;
const requestQueue = [];
// ═══════════════════════════════════════════════════════════════════════════
// 🛠️ UTILITY FUNCTIONS
// ═══════════════════════════════════════════════════════════════════════════
const log = (...args) => SETTINGS.debugMode && console.log('📅 [YT Dates]', ...args);
/**
* Format date with custom template
* Tokens: yyyy, yy, MMM, MM, dd, ww, HH, hh, mm, ss, ap
*/
function formatDate(date, template = SETTINGS.dateFormat) {
const d = new Date(date);
if (isNaN(d.getTime())) return '';
const pad = (n, len = 2) => String(n).padStart(len, '0');
const tokens = {
yyyy: d.getFullYear(),
yy: String(d.getFullYear()).slice(-2),
MMM: SETTINGS.monthNames[d.getMonth()],
MM: pad(d.getMonth() + 1),
dd: pad(d.getDate()),
ww: SETTINGS.dayNames[d.getDay()],
HH: pad(d.getHours()),
hh: pad(d.getHours() % 12 || 12),
mm: pad(d.getMinutes()),
ss: pad(d.getSeconds()),
ap: d.getHours() < 12 ? 'AM' : 'PM'
};
return template.replace(/yyyy|yy|MMM|MM|dd|ww|HH|hh|mm|ss|ap/g, match => tokens[match]);
}
/**
* Extract video ID from URL
*/
function getVideoId(url) {
if (!url) return null;
// Handle shorts
let match = url.match(/\/shorts\/([^/?&]+)/);
if (match) return match[1];
// Handle watch URLs
match = url.match(/[?&]v=([^&]+)/);
if (match) return match[1];
// Handle embed URLs
match = url.match(/\/embed\/([^/?&]+)/);
if (match) return match[1];
return null;
}
/**
* Check if element contains relative date text
*/
function hasRelativeDate(text) {
if (!text) return false;
return SETTINGS.agoKeywords.some(kw => text.includes(kw)) &&
SETTINGS.dateKeywords.some(kw => text.includes(kw));
}
/**
* Check if upload is "old" (should show only formatted date)
*/
function isOldUpload(text) {
return SETTINGS.oldUploadKeywords.some(kw => text.includes(kw));
}
// ═══════════════════════════════════════════════════════════════════════════
// 🌐 API FUNCTIONS
// ═══════════════════════════════════════════════════════════════════════════
/**
* Fetch upload date from YouTube API with caching
*/
async function fetchUploadDate(videoId) {
// Check cache first
if (dateCache.has(videoId)) {
return dateCache.get(videoId);
}
const body = {
context: {
client: {
clientName: 'WEB',
clientVersion: '2.20240416.01.00'
}
},
videoId
};
try {
const response = await fetch('https://www.youtube.com/youtubei/v1/player?prettyPrint=false', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(body)
});
if (!response.ok) throw new Error('Network error');
const data = await response.json();
const info = data?.microformat?.playerMicroformatRenderer;
let uploadDate = null;
if (info?.liveBroadcastDetails?.isLiveNow) {
uploadDate = info.liveBroadcastDetails.startTimestamp;
} else {
uploadDate = info?.publishDate || info?.uploadDate;
}
// Cache the result
if (uploadDate) {
dateCache.set(videoId, uploadDate);
}
return uploadDate;
} catch (error) {
log('❌ Fetch error:', error);
return null;
}
}
/**
* Get upload date from page metadata (for current video page)
*/
function getPageUploadDate() {
const script = document.querySelector('player-microformat-renderer script');
if (!script) return null;
const text = script.textContent;
// Try startDate first (for streams)
let match = text.match(/"startDate":"([^"]+)"/);
if (match) return match[1];
// Fall back to uploadDate
match = text.match(/"uploadDate":"([^"]+)"/);
return match ? match[1] : null;
}
/**
* Check if current video is live
*/
function isLiveBroadcast() {
const script = document.querySelector('player-microformat-renderer script');
if (!script) return false;
const text = script.textContent;
if (!text.includes('"isLiveBroadcast":true')) return false;
// Not live if there's an endDate
return !text.includes('"endDate"');
}
// ═══════════════════════════════════════════════════════════════════════════
// 🔄 PROCESSING FUNCTIONS
// ═══════════════════════════════════════════════════════════════════════════
/**
* Process request queue with rate limiting
*/
async function processQueue() {
while (requestQueue.length > 0 && pendingRequests < MAX_CONCURRENT) {
const task = requestQueue.shift();
pendingRequests++;
try {
await task();
} catch (e) {
log('❌ Task error:', e);
}
pendingRequests--;
}
}
/**
* Queue a date update task
*/
function queueDateUpdate(videoId, element, originalText) {
requestQueue.push(async () => {
const uploadDate = await fetchUploadDate(videoId);
if (!uploadDate) return;
const formatted = formatDate(uploadDate) + PROCESSED;
let displayText;
if (!SETTINGS.showBothDates || isOldUpload(originalText)) {
displayText = formatted;
} else {
displayText = SETTINGS.prependDates
? `${formatted} · ${originalText}`
: `${originalText} · ${formatted}`;
}
if (element.firstChild) {
element.firstChild.nodeValue = displayText;
} else {
element.textContent = displayText;
}
});
processQueue();
}
/**
* Update video description date (on watch pages)
*/
function processVideoDescription() {
const uploadDate = getPageUploadDate();
if (!uploadDate) return;
const formatted = formatDate(uploadDate);
const isLive = isLiveBroadcast();
document.body.classList.toggle('ytfd-live', isLive);
// Find or create date element
let dateEl = document.querySelector('#info-container > #info > b.ytfd-date');
if (!dateEl) {
const firstSpan = document.querySelector('#info-container > #info > span:first-child');
if (firstSpan) {
dateEl = document.createElement('b');
dateEl.className = 'ytfd-date';
firstSpan.after(dateEl);
}
}
if (dateEl && dateEl.textContent !== formatted) {
dateEl.textContent = formatted;
}
}
// ═══════════════════════════════════════════════════════════════════════════
// 📋 PAGE CONFIGURATIONS
// ═══════════════════════════════════════════════════════════════════════════
const PAGE_CONFIGS = [
{
id: 'watch-sidebar',
urlPattern: /watch\?v=/,
containerSelector: 'yt-lockup-view-model.lockup',
dateSelector: '.yt-core-attributed-string--link-inherit-color',
linkSelector: '.yt-lockup-view-model__content-image'
},
{
id: 'homepage',
urlPattern: /youtube\.com\/?$/,
containerSelector: 'ytd-rich-item-renderer',
dateSelector: '.yt-core-attributed-string--link-inherit-color',
linkSelector: '.yt-lockup-view-model__content-image'
},
{
id: 'search',
urlPattern: /results\?search_query=/,
containerSelector: 'ytd-video-renderer',
dateSelector: '.inline-metadata-item',
linkSelector: '#thumbnail'
},
{
id: 'subscriptions',
urlPattern: /feed\/subscriptions/,
containerSelector: '#dismissible',
dateSelector: '#metadata-line > span',
linkSelector: 'h3 > a'
},
{
id: 'channel-videos',
urlPattern: /@[^/]+\/videos/,
containerSelector: 'ytd-rich-grid-media',
dateSelector: '#metadata-line > span',
linkSelector: 'h3 > a'
},
{
id: 'channel-featured',
urlPattern: /@[^/]+\/?$/,
containerSelector: 'ytd-grid-video-renderer',
dateSelector: '#metadata-line > span',
linkSelector: 'a#thumbnail'
},
{
id: 'playlist',
urlPattern: /playlist\?list=/,
containerSelector: 'ytd-playlist-video-renderer',
dateSelector: 'span.yt-formatted-string',
linkSelector: 'a#thumbnail'
}
];
/**
* Get configs matching current URL
*/
function getActiveConfigs() {
const url = window.location.href;
return PAGE_CONFIGS.filter(c => c.urlPattern.test(url));
}
/**
* Process videos based on config
*/
function processVideos(config) {
const containers = document.querySelectorAll(config.containerSelector);
containers.forEach(container => {
// Find date elements
const dateElements = container.querySelectorAll(config.dateSelector);
// Find the one with relative date text
const dateEl = Array.from(dateElements).find(el => {
const text = el.textContent;
return hasRelativeDate(text) && !text.includes(PROCESSED);
});
if (!dateEl) return;
const originalText = dateEl.textContent.trim();
// Mark as processing
if (dateEl.firstChild) {
dateEl.firstChild.nodeValue = originalText + PROCESSED;
}
// Get video link
const linkEl = container.querySelector(config.linkSelector);
const href = linkEl?.getAttribute('href');
const videoId = getVideoId(href);
if (!videoId) {
log('⚠️ No video ID for:', config.id);
return;
}
queueDateUpdate(videoId, dateEl, originalText);
});
}
/**
* Run all processors
*/
function runProcessors() {
if (isProcessing) return;
isProcessing = true;
try {
// Process video page description
if (/watch\?v=/.test(window.location.href)) {
processVideoDescription();
}
// Process video lists
const configs = getActiveConfigs();
configs.forEach(processVideos);
} catch (error) {
log('❌ Processing error:', error);
}
isProcessing = false;
}
// ═══════════════════════════════════════════════════════════════════════════
// 🎨 STYLES
// ═══════════════════════════════════════════════════════════════════════════
GM_addStyle(`
/* Hide original date elements on watch page */
#info > span:nth-child(3),
#info > span:nth-child(4),
#date-text {
display: none !important;
}
/* Custom date styling */
#info > b.ytfd-date {
font-weight: 500 !important;
margin-left: 6px !important;
}
/* Live broadcast adjustments */
.ytfd-live #info > span:first-child {
display: none !important;
}
.ytfd-live #info > b.ytfd-date {
margin-left: 0 !important;
margin-right: 6px !important;
}
/* Settings Panel */
#ytfd-panel {
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 420px;
max-height: 80vh;
overflow-y: auto;
background: #fff;
border-radius: 12px;
box-shadow: 0 8px 32px rgba(0,0,0,0.2);
z-index: 99999;
font-family: 'YouTube Sans', Roboto, Arial, sans-serif;
display: none;
}
#ytfd-panel.visible { display: block; }
.ytfd-header {
display: flex;
justify-content: space-between;
align-items: center;
padding: 16px 20px;
border-bottom: 1px solid #e5e5e5;
background: #f9f9f9;
border-radius: 12px 12px 0 0;
}
.ytfd-header h2 {
margin: 0;
font-size: 16px;
font-weight: 600;
color: #0f0f0f;
}
.ytfd-close {
background: none;
border: none;
font-size: 20px;
cursor: pointer;
color: #606060;
padding: 4px 8px;
border-radius: 4px;
}
.ytfd-close:hover { background: #e5e5e5; }
.ytfd-body { padding: 20px; }
.ytfd-section {
margin-bottom: 20px;
padding: 16px;
background: #f9f9f9;
border-radius: 8px;
}
.ytfd-section-title {
font-size: 13px;
font-weight: 600;
color: #606060;
margin-bottom: 12px;
text-transform: uppercase;
letter-spacing: 0.5px;
}
.ytfd-row {
display: flex;
align-items: center;
justify-content: space-between;
padding: 8px 0;
}
.ytfd-label {
font-size: 14px;
color: #0f0f0f;
}
.ytfd-input {
width: 180px;
padding: 8px 12px;
border: 1px solid #ccc;
border-radius: 6px;
font-size: 13px;
}
.ytfd-input:focus {
outline: none;
border-color: #065fd4;
}
.ytfd-toggle {
position: relative;
width: 44px;
height: 24px;
background: #ccc;
border-radius: 12px;
cursor: pointer;
transition: background 0.2s;
}
.ytfd-toggle.on { background: #065fd4; }
.ytfd-toggle::after {
content: '';
position: absolute;
top: 2px;
left: 2px;
width: 20px;
height: 20px;
background: white;
border-radius: 50%;
transition: left 0.2s;
}
.ytfd-toggle.on::after { left: 22px; }
.ytfd-footer {
padding: 16px 20px;
border-top: 1px solid #e5e5e5;
display: flex;
justify-content: flex-end;
gap: 10px;
}
.ytfd-btn {
padding: 10px 20px;
border: none;
border-radius: 18px;
font-size: 14px;
font-weight: 500;
cursor: pointer;
transition: all 0.2s;
}
.ytfd-btn-primary {
background: #065fd4;
color: white;
}
.ytfd-btn-primary:hover { background: #0056b8; }
.ytfd-btn-secondary {
background: #f2f2f2;
color: #0f0f0f;
}
.ytfd-btn-secondary:hover { background: #e5e5e5; }
.ytfd-help {
font-size: 11px;
color: #909090;
margin-top: 4px;
}
.ytfd-preview {
margin-top: 8px;
padding: 8px 12px;
background: #e8f0fe;
border-radius: 6px;
font-size: 13px;
color: #1a73e8;
}
`);
// ═══════════════════════════════════════════════════════════════════════════
// ⚙️ SETTINGS PANEL
// ═══════════════════════════════════════════════════════════════════════════
function createSettingsPanel() {
const panel = document.createElement('div');
panel.id = 'ytfd-panel';
panel.innerHTML = `
<div class="ytfd-header">
<h2>📅 YouTube Full Dates Settings</h2>
<button class="ytfd-close" title="Close">✕</button>
</div>
<div class="ytfd-body">
<div class="ytfd-section">
<div class="ytfd-section-title">Date Format</div>
<div class="ytfd-row">
<label class="ytfd-label">Format Template</label>
<input type="text" class="ytfd-input" id="ytfd-format" value="${SETTINGS.dateFormat}">
</div>
<div class="ytfd-help">
Tokens: yyyy, yy, MM, MMM, dd, ww, HH, hh, mm, ss, ap
</div>
<div class="ytfd-preview" id="ytfd-preview">
Preview: ${formatDate(new Date())}
</div>
</div>
<div class="ytfd-section">
<div class="ytfd-section-title">Display Options</div>
<div class="ytfd-row">
<label class="ytfd-label">Show both dates (recent videos)</label>
<div class="ytfd-toggle ${SETTINGS.showBothDates ? 'on' : ''}" data-key="showBothDates"></div>
</div>
<div class="ytfd-row">
<label class="ytfd-label">Put formatted date first</label>
<div class="ytfd-toggle ${SETTINGS.prependDates ? 'on' : ''}" data-key="prependDates"></div>
</div>
<div class="ytfd-row">
<label class="ytfd-label">Debug mode</label>
<div class="ytfd-toggle ${SETTINGS.debugMode ? 'on' : ''}" data-key="debugMode"></div>
</div>
</div>
<div class="ytfd-section">
<div class="ytfd-section-title">Keywords (Advanced)</div>
<div class="ytfd-row">
<label class="ytfd-label">"Ago" keywords</label>
<input type="text" class="ytfd-input" id="ytfd-ago" value="${SETTINGS.agoKeywords.join(' ')}">
</div>
<div class="ytfd-help">
Words that indicate relative dates (e.g., "ago" in "2 days ago")
</div>
</div>
</div>
<div class="ytfd-footer">
<button class="ytfd-btn ytfd-btn-secondary" id="ytfd-reset">Reset</button>
<button class="ytfd-btn ytfd-btn-primary" id="ytfd-save">Save</button>
</div>
`;
document.body.appendChild(panel);
// Event listeners
panel.querySelector('.ytfd-close').addEventListener('click', () => {
panel.classList.remove('visible');
});
// Toggle handlers
panel.querySelectorAll('.ytfd-toggle').forEach(toggle => {
toggle.addEventListener('click', () => {
toggle.classList.toggle('on');
});
});
// Format preview
const formatInput = panel.querySelector('#ytfd-format');
const preview = panel.querySelector('#ytfd-preview');
formatInput.addEventListener('input', () => {
preview.textContent = `Preview: ${formatDate(new Date(), formatInput.value)}`;
});
// Save button
panel.querySelector('#ytfd-save').addEventListener('click', () => {
const newSettings = {
dateFormat: formatInput.value,
showBothDates: panel.querySelector('[data-key="showBothDates"]').classList.contains('on'),
prependDates: panel.querySelector('[data-key="prependDates"]').classList.contains('on'),
debugMode: panel.querySelector('[data-key="debugMode"]').classList.contains('on'),
agoKeywords: panel.querySelector('#ytfd-ago').value.split(' ').filter(Boolean)
};
GM_setValue('settings', newSettings);
alert('✅ Settings saved! Refresh the page to apply changes.');
panel.classList.remove('visible');
});
// Reset button
panel.querySelector('#ytfd-reset').addEventListener('click', () => {
if (confirm('Reset all settings to defaults?')) {
GM_setValue('settings', {});
alert('✅ Settings reset! Refresh the page to apply.');
panel.classList.remove('visible');
}
});
// Close on Escape
document.addEventListener('keydown', (e) => {
if (e.key === 'Escape') panel.classList.remove('visible');
});
// Close on outside click
document.addEventListener('click', (e) => {
if (panel.classList.contains('visible') && !panel.contains(e.target)) {
panel.classList.remove('visible');
}
}, true);
return panel;
}
// ═══════════════════════════════════════════════════════════════════════════
// 🚀 INITIALIZATION
// ═══════════════════════════════════════════════════════════════════════════
// Create settings panel
const settingsPanel = createSettingsPanel();
// Register menu command
GM_registerMenuCommand('⚙️ Open Settings', () => {
settingsPanel.classList.add('visible');
});
// Debounce helper
let debounceTimer = null;
function debouncedRun(delay = 500) {
clearTimeout(debounceTimer);
debounceTimer = setTimeout(runProcessors, delay);
}
// MutationObserver for dynamic content
const observer = new MutationObserver((mutations) => {
let shouldRun = false;
for (const mutation of mutations) {
if (mutation.type === 'childList' && mutation.addedNodes.length > 0) {
// Check if relevant elements were added
for (const node of mutation.addedNodes) {
if (node.nodeType === 1) {
const selectors = PAGE_CONFIGS.map(c => c.containerSelector).join(', ');
if (node.matches?.(selectors) || node.querySelector?.(selectors)) {
shouldRun = true;
break;
}
}
}
}
}
if (shouldRun) debouncedRun();
});
// YouTube navigation listener
window.addEventListener('yt-navigate-finish', () => {
dateCache.clear(); // Clear cache on navigation
debouncedRun(300);
});
// Start observer
observer.observe(document.body, {
childList: true,
subtree: true
});
// Initial run
setTimeout(runProcessors, 1000);
console.log('📅 YouTube Full Dates v2 loaded!');
})();