You don't understand the startdates?
Take, for example, 20161129.2300
Let me stick some spaces in some helpful places:
2016 11 29 . 23 00
That better?
20161129 means 29th November 2016, and 2300 is in 24-hour clock format, IE 11:00PM
Stardates in the Star Trek universe work in an entirely different way. Wikipedia has a good explanation on how Stardates work.