4 Uhr

The Time mentioned in a german saying: "Kein Bier vor 4" which ruoghly translates to: "no beer before 4 pm" although the argument needs to be made, that to this day noone can be sure wether the 4 translates to the time or the age of 4

3:30 pm:
A: Hey what are you doing there?
B: Opening a beer?!?
A: Wait,now is not the time for that, you know the German saying: "Kein Bier vor 4"!
B: Wait you don't know another German saying: "Vor 4 Uhr ist nach 4 Uhr"!
Beer: *OPENS*