if you want to share just a certain portion of a youtube video with your friend or user , you'll notice that there is no official option to do this. Normally you have to inform to others which minute they can pull to start from. Bet you didn't know that there is a handy trick to send a link to your friend or embed a certain portion of the youtube video in your website. skip the fluff and get to the good stuff.
How to share a certain portion of youtube video :
1. open your youtube video and copy the video URL ( on the address bar of the browser )
2. After the URL link add #t=01m08s to set the starting point of the video at 1 minute and 8 seconds. Here is how it should look like: you can set time as your wish .
3. To embed a portion of a YouTube video the process goes the same way. You simply have to add #t=01m08s to the embed code you get from the original video and paste it to your website. see below picture to get embed code for youtube video.
4. That's it. you can share the video now , once the user plays the video , it'll automatically start from the time which you placed in the URL .