Stardates Explained - 20201124.2000

You don't understand the startdates?

Take, for example, 20201124.2000

Let me stick some spaces in some helpful places:

2020 11 24 . 20 00

That better?

20201124 means 24th November 2020, 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.

Events on this stardate