I was surprised to see that my iPod switched itself.
By now the rules are built into the calendars in the computers and other of these types of electronic devices. If you've got a iPod Touch, then it goes out to the Internet and gets the time (as a function of Mac OS X, just like the Mac computers, do too...).
Yes,it's a Touch and it's the only apple product I've ever owned or used.It has internet capability but it was only turned on this morning in an area without WiFi coverage (I wasn't home) so I don't understand how it would have connected to the internet.Oh well,maybe I don't have to understand it.I'll just add it to the long list of other stuff that I don't understand. ;-)