Tennessee is split between the Eastern and Central time zones. Prior to 1947, all of Tennessee observed Central time. Fourteen other states also observe multiple time zones. Eastern or Central time?

Here’s what that looks like across the time zones: 3 a.m. PDT for the west coast of North America 6 a.m. EDT for the east coast of North America 7 a.m. BRT for Brazil 11 a.m. BST for the U.K.

It’s not quite a time zone like those on Earth, but an entire frame of time reference for the moon. As Einstein famously noted, time is very much relative.