Karma still bad, still haven't checked why
Maybe someday I will care enough to check
Another variant on this theme is in the short story "Understand" by Ted Chiang. It is in the short-story collection "Stories of Your Life and Others". Even though this story has a very different ending, I instantly thought of Flowers.
I am guessing you are not from the USA. There are more than 3 time zones. We have some where between 7 and 9 depending on how you count, and what you count as the US. Several states have split time zones, and because we like things complicated here in the US, I live in a state that doesn't believe in DST (Arizona), but often gets a separate listing in time zone tables. And there is a section inside the state (the Navajo Nation) that does honor DST, and a section inside that (The Hopi nation) that doesn't honor it.
There. That should clear things up.
ObQuote: "Ever heard of Plato, Aristotle, Socrates?...Morons."