I often want to share a link of a video with someone, but want it to start at a specific time. Youtube has had this for some time, and as a popular video site, it’s much easier to come up with an answer…
For Youtube, Add ?t=0m0s to the end of your link.
So, a video link like this: https://www.youtube.com/watch?v=olFEpeMwgHk
That you want to start 55 seconds in, make the URL look like this: https://www.youtube.com/watch?v=olFEpeMwgHk?t=0m55s
Your Video will start 55 seconds in:
In Vimeo, #t=0m0s , change the first number for minutes, second for seconds:
So a URL would look like this: https://vimeo.com/134956374#t=43m50s
Source for Vimeo Info: http://webapps.stackexchange.com/questions/24253/is-it-possible-to-link-to-a-specific-portion-of-a-vimeo-video