Timing my “Ian Knot” ranges from a split-second (if you don't time the starting knot) to around two seconds (the complete knot). This video is in response to countless “two seconds” or “one second” shoe tying videos – most of which don't show the whole method.
0:00 Introducing “fast shoe tie” videos
0:29 Shoelace knot is tied in two stages
0:43 Two common “fast” techniques
0:58 Shouldn't skip the “Starting Knot”
1:08 Regular “Starting Knot” + “Ian Knot”
1:18 Fast “Starting Knot” + “Ian Knot”
1:31 Just the split-second “Ian Knot”
1:41 Link to website
More info plus animated diagrams and step-by-step instructions on “Ian's Shoelace Site”, the Internet's #1 website about shoelaces – and home of the “Ian Knot”:
https://www.fieggen.com/shoelace/ianknot.htm