This has a bit of lag, I don't know if you will except this because of the lag, but I can make a new version if you like. Also, I don't know like how to tell the exact time, so I counted it during the speedrun. If you can, suggest me where I can get a timer that is perfect for speedrunning. Thanks very much.

MOD EDIT: retimed

Start Time: 06.100 End Time: 18.750

Run Time: 12.650

In regards to timing you can right click on youtube at the start and the end and click 'copy debug info' within that info you will see CMT that is the exact time of the video in miliseconds you need.