>The solution [...] is to start them at, say, 9:10am so there's a clean mental stop at 10am.
Unfortunately, I've been in a few meetings scheduled for 9:00 that only really started at 9:10. I think if they were scheduled for 9:10, they would've only started at 9:20...
You can NEVER knowingly trick yourself with clock tricks.
Because all it will do is make you really good at time math.
I've seen it even back when people would set all their clocks in their car and home 5 minutes fast, they just got real good at doing five minute math.
Haha. I was one of those “set clock fast” people until one day realized that all it did was make the time I was supposed to be somewhere even more ambiguous than before. It never helped me arrive somewhere exactly on time, but certainly contributed to me arriving late because my mind forgot precisely what time my clock was set to relative to real time.
In that case you can just keep scheduling it for 9:00 to 10:00, I guess?
But I agree with the parent, if you need to move something then move the start.