When:
Stardate: 20190319.1900
Stardate: 20190319.1900
Until:
Stardate: 20190319.2300
Stardate: 20190319.2300
Where:
Moore room 0-09
Who:
Members Only
You don't understand the startdates?
Take, for example, 20190319.2300
Let me stick some spaces in some helpful places:
2019 03 19 . 23 00
That better?
20190319 means 19th March 2019, 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 Stardates work.