If you live in an area that observes Daylight Saving Time, you're familiar with having to go around and set your clocks an hour back in the fall and an hour forward in the spring. I think this is ridiculous in 2008. All clocks should set themselves automatically!
The technology to do this has been around since the 1980s. Your first option is to use a radio clock that receives a radio frequency time code transmitted from a time source, usually an atomic clock. I like watches that are combination digital and analog, and manually keeping both clocks in sync is an effort in futility. My current watch, a Casio Wave Ceptor, sets itself every day at 5 AM based on a signal broadcast from Fort Collins, Colorado. I'll never go back to a manually set watch.
Although radio clocks are pretty cool, the future is, of course, Internet-based. Computers have been able to sync their clocks based on the Network Time Protocol since the early 1980s, and there's no reason that all Internet-connected devices shouldn't maintain themselves the same way.