You don't understand the startdates?
Take, for example, 20010717.1359
Let me stick some spaces in some helpful places:
2001 07 17 . 13 59
That better?
20010717 means 17th July 2001, and 1359 is in 24-hour clock format, IE 1:59PM
Stardates in the Star Trek universe work in an entirely different way. Wikipedia has a good explanation on how Stardates work.