YouTube Playlist Running Time Tally

README.md

HOW TO USE

1. Copy the contents of youtube-playlist-tally.js
2. Open a YouTube playlist in your browser
   • Important: Do not scroll down; this will load recommendations, which will mess up the tally!
3. Open your browser's devtools → Console
4. Paste the contents of your clipboard and press Enter
5. Done! Your console should return the total runtime of the playlist as a string.

LIMITATIONS

• This won't work if any video in the playlist is more than an hour long.
• Output is in MM:SS only. If the total is over one hour (MM >= 60), you will have to convert it to HH:MM:SS yourself.

youtube-playlist-tally.js

(() => {
    const secondsTotal = [...document.querySelectorAll('ytd-thumbnail-overlay-time-status-renderer')]
      .map((element) => element.textContent.trim())
      .map((textContent) => textContent.slice(0, textContent.indexOf('\n')))
      .reduce((accumulator, currentValue) => {
          const [minutes, seconds] = currentValue.split(':');
          return accumulator + (parseInt(minutes) * 60) + parseInt(seconds);
      }, 0);
    const minutesTotal = Math.floor(secondsTotal / 60);
    const secondsLeftover = Math.floor(secondsTotal % 60);
    return `${minutesTotal}:${String(secondsLeftover).padStart(2, '0')}`
})();