You don't understand the startdates?
Take, for example, 20090214.1454
Let me stick some spaces in some helpful places:
2009 02 14 . 14 54
That better?
20090214 means 14th February 2009, and 1454 is in 24-hour clock format, IE 2:54PM
Stardates in the Star Trek universe work in an entirely different way. Wikipedia has a good explanation on how Stardates work.