Why four hands? So you can track time over four scales:

  1. Seconds each minute: as a reminder that time is scarce.
  2. Minutes each day: to think about how to spend your day.
  3. Days each year: to think about your medium term goals.
  4. Years in your lifetime: to remind you to use them wisely.

Source code and live demo:

Features I’d like to add:

  1. Make it work for people other than myself.
  2. Sunrise and Sunset icons in Day view.