Draftermidnight
Draftermidnight occurs when you need a beer after 12:00AM. Anytime before this should be considered Drafternoon or Beerthirty.
I work 3PM-11PM all week...I can't wait until draftermidnight rolls around. At draftermidnight, we gonna let it all hang out <insert hacked up Eric Clapton tune in your head here>.