Just for fun to distract me:
Dd had swab at drive through at 9am. When will we get the result?
Put your name next to the time you want...
2100
2200
2300
2400
0000
0100
0200
0300
0400
0500
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
0000
Before the half hour I will round down, after it I will round up