
You don't understand the startdates?
Take, for example, 20170316.2000
Let me stick some spaces in some helpful places:
2017 03 16 . 20 00
That better?
20170316 means 16th March 2017, and 2000 is in 24-hour clock format, IE 8:00PM
Stardates in the Star Trek universe work in an entirely different way. Wikipedia has a good explanation on how Stardates work.