A Map of the world showing where the local time zone is wrong
Transcription
A map of the world with vertical lines marking the time zones from UTC-12 to UTC+12. It has a legend:
Wrong Time
"Natural time zones" are 15° in longitude. Land in red observes a time other than the zone it lies within. Smaller islands depict their 12 nautical mile territorial sea, for visual effect. In some cases this includes a state's archipelagic waters.
So looking at the US map, it looks like a lot of the red zones are because they've arbitrarily defined the borders of the time zone. But US time zones are mostly concerned with making sure that the country is roughly evenly spaced across time zones. Really the northeastern part of the country is what's out of alignment.