1. Laundry. "The clothes will dry in 52 minutes. Time to do some homework."
2. Parking meters. "Money can buy you things, but it can't buy you time. Unless you need a parking meter."
3. Using time in board games. "In the jungle you must wait, until the dice read 5 or 8."
4. Exercise. "You can tell you've been sprinting for thirty minutes when your legs are pretty much jello."
5. Jet lag. "The clock says it's noon, sure, but my brain still insists that it is 5 in the morning."