You don't understand the startdates?
Take, for example, 20010309.1131
Let me stick some spaces in some helpful places:
2001 03 09 . 11 31
That better?
20010309 means 9th March 2001, and 1131 is in 24-hour clock format, IE 11:31AM
Stardates in the Star Trek universe work in an entirely different way. Wikipedia has a good explanation on how Stardates work.