Date: 2011feb12 Q. YouTube: How to make a time bookmark on a YouTube video? A. Add #t=54s to the regular YouTube URL. This example makes a bookmark 54 seconds in. Or #t3m42 for a bookmark 3 minutes and 42 seconds in. Nearly Full Examples: ...youtube.com/watch?v=FkEUE5y8Pcc#t=54s ...youtube.com/watch?v=FkEUE5y8Pcc#t=3m42