I found this alarm clock a bit puzzling at first (har har), but once I made sense of it, I realized it's quite clever! Though it's technically an alarm 'clock', Puzzle doesn't really function as a minute-to-minute clock - its sole function is as an alarm. You set your wake-up time by constructing the numbers "stroke by stroke" on the front face. Once you've created a valid time, a small light in the upper corner of the clock lights up as a confirmation that the alarm is set. To turn it off, simply remove part of any digit (or push the button on top, but that's not nearly as fun). A slightly more engaging way of managing your time!

Learn more about the Puzzle clock here.