When we all turn the clocks back an hour, where does that "extra" hour come from? Do we buy all those hours from the Chinese? Is that hour just stored in the clock from when we jumped it forward last spring? Do people without clocks get a clock hour credit subsidy? How many man hours and lost productivity lost does the effort of resetting clocks cost? When at 2:00 AM I reset my clock am I now a time traveler returning to a previous time?