Bookmarklets are tiny tool buttons you add to your web browser's Bookmarks Toolbar. Once you've installed the Video Alarm Clock Bookmarklet, you can visit any video on YouTube.com and then click the Bookmarklet: you'll then automatically be taken to our page where you can preview the video & set it as an alarm. To install our Video Alarm Clock Bookmarklet, bookmark the following link:

Source (onlineclock.net)

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