A number of years ago my wife and I visited Lubec, Maine, which is about the northeastern point of the state. Lubec has a bridge that connects to Campobello Island, which is Canadian. For whatever reason, Campobello is in a different time zone despite being physically only one or two hundred yards from the mainland.

I learned the hard way that the closest cell tower in the area was on Campobello, and since it’s in a different time zone it caused my phone to change time to an hour earlier. Luckily it resulted in us being an hour early for a harbor tour instead of an hour late.