Let me stick some spaces in some helpful places:
2018 02 20 . 23 00
20180220 means 20th Feb 2018, 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 they work.
Events on this stardate
It's a bird, it's a plane, NO! It's our Superhero Movie Night! We're living in the golden age of superhero movies
right now, and what better way to celebrate it than with a movie, about superheroes!! Bring your favourites along and we'll vote on the one we want to watch!