Make a YouTube deep link scroll to the embedded video, skip to the time code, and start playing.

video-control.js

/*****
- Embed a YouTube video on a page.
- Put a deep link to the same video (https://youtu.be/1a2b3c4d5e6?t=123) into a container with class .tribify-video-control. 
- When you click the link, the page will smooth-scroll to the embedded video, skip to the designated time code, and begin playing. 

This example assumes you are running WordPress with jQuery and are using a standard YouTube embed iframe.
*****/

// Set up event handler. Only applies to a tags inside a container of class .tribify-video-control.
jQuery(document).on('ready', function() {
    jQuery('.tribify-video-control a').on('click', tribifyVideoControlClick);
});

// Handle the click event. Only fires for standard YouTube sharing links. 
// Will scroll to the first Youtube embed iframe placed ABOVE the link.
// Applies scroll offset for WordPress #wpadminbar) & #masthead containers. 
function tribifyVideoControlClick() {
    try {
        const a = jQuery(this);
        const href = a.attr('href');
        const hrefVideoId = getYouTubeVideoId(href);
        if (!hrefVideoId) return true;
    
        const hrefUrl = new URL(href);
        const t = parseInt(hrefUrl.searchParams.get('t')) || 0;
    
        const tvc = a.closest('.tribify-video-control');
        const iframe = tvc.find('iframe').first();
        if (!iframe) return true;
        
        const iframeId = iframe.attr('id');
        if (!iframeId) return true;
    
        const player = YT.get(iframeId);
        if (!player) return true;
        const playerVideoUrl = player.getVideoUrl();
        const playerVideoId = getYouTubeVideoId(playerVideoUrl);
        if (playerVideoId !== hrefVideoId) return true;
        
        const offset = (jQuery('#wpadminbar').height() || 0) + (jQuery('#masthead').height() || 0);
        jQuery('html, body').animate({scrollTop: tvc.offset().top - offset - 10}, 400, 'easeInQuint');
        player.seekTo(t, true);
        player.playVideo();
        
        return false;
    }
    
    catch(e) { 
        console.log(e); 
        return false;
    }
}

// Extract video id from YouTube link.
function getYouTubeVideoId(url) {
  url = url.split(/(vi\/|v=|\/v\/|youtu\.be\/|\/embed\/)/);
  return (url[2] !== undefined) ? url[2].split(/[^0-9a-z_\-]/i)[0] : url[0];
}