Time stamps on comments and Help Requests.

Hey Mark! Thanks for reaching to us with your doubt! The time stamp is for that specific video in which your posting questions on. 

Let's say for example your facing a doubt in a video or are confused what Sal Khan (or other instructor) really meant to say on that particular time, and that time is lets say at '3:16', so when you post your doubt on the discussions below this video, you mention this time stamp and ask your query. This will make your query more specific and also help users to answer your query. 

And one more thing, you don't need to post time stamp on every question you ask, only whenever necessary.

Hope this helps! :)

Have a great Day!

that also helps me! thanks!

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