This sounds like a good way to overcome procrastination and get work done.
Basically, you message a buddy and say…
A: Hey, want to do ‘hours’?
B: Sure. This hour I’ll read over the Smith contract and try to get it sent off.
A: OK, In this hour I’ll fix the bug where there’s trash html in the email field sometimes.
B: OK, it’s 11:23 my time, see you at 12:23
Then, after an hour:
A (or B): Hey, ding ding ding, time’s up, how’d you do?