You don't understand the startdates?
Take, for example, 20111021.1054
Let me stick some spaces in some helpful places:
2011 10 21 . 10 54
That better?
20111021 means 21st October 2011, and 1054 is in 24-hour clock format, IE 10:54AM
Stardates in the Star Trek universe work in an entirely different way. Wikipedia has a good explanation on how Stardates work.