You don't understand the startdates?
Take, for example, 20251111.0907
Let me stick some spaces in some helpful places:
2025 11 11 . 09 07
That better?
20251111 means 11th November 2025, and 0907 is in 24-hour clock format, IE 9:07AM
Stardates in the Star Trek universe work in an entirely different way. Wikipedia has a good explanation on how Stardates work.