Use the embed code in the video's share tab, adding the time after the video's url. (It's hard to explain. See what you did where you added the "?t=10m51s"? Similar to that except you have to use just seconds to seek. "?start=651" in this case.)
Example for your video (I added an "end" to it as well)
Top Comments
MIMU
Feb 22, 2014 at 03:50PM EST in reply to
Land-of-Memes-and-Lulz
Feb 23, 2014 at 07:27PM EST