@Dirty Harry: You live in a world with multiple time zones (I assume). You are always in one of them. It's nice to pretend they don't exist, but at some point you have to deal with it.

I am trying to get my kids to start working on unix time (number of milliseconds since 00:00 on Jan 1 1970), but they are having trouble figuring out how to set their alarm clocks. And they don't like the fact that it makes my birth date a negative number.