Stardates Explained - 20110807.1020

You don't understand the startdates?

Take, for example, 20110807.1020

Let me stick some spaces in some helpful places:

2011 08 07 . 10 20

That better?

20110807 means 7th August 2011, and 1020 is in 24-hour clock format, IE 10:20AM

Stardates in the Star Trek universe work in an entirely different way. Wikipedia has a good explanation on how Stardates work.