> Now this doesn't work for me. If I know the clock is >15 minutes fast I look at the clock and think "Oh good, I've got another 15 >minutes yet." You are missing one essential ingredient in this equation. Besides a clock with setting buttons on top, you must have a cat. Then the clock time will be advanced at irregular intervals, and you won't actually know the correction factor. One morning at work I had people staring at their watches..."What's he doing here? Is my watch broken?" Barry -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu