You don't understand the startdates?
Take, for example, 20250712.0207
Let me stick some spaces in some helpful places:
2025 07 12 . 02 07
That better?
20250712 means 12th July 2025, and 0207 is in 24-hour clock format, IE 2:07AM
Stardates in the Star Trek universe work in an entirely different way. Wikipedia has a good explanation on how Stardates work.