I like this. Just one little further tweak: every hour block should be a time zone conversion to a completely useless time.
For example the hour long block at 8:00am would be: 0:00-0:59 Ugandan time
For even more bonus points, account for Uganda not observing DST.
self- rectal exam
Just like checking your breasts for lumps, the fight against colon cancer begins at home.