Will the sun ever set on the British empire?.
This article by Randall Munro, author of the xkcd comic, just keeps getting better and better.
The exact day when the sun stopped setting on the [British] empire was probably sometime in the late 1700s or early 1800s, when the first Australian territories were added….
Every night, around midnight GMT, the sun sets on the Cayman Islands, and doesn’t rise over the British Indian Ocean territory until after 1am. For that hour, the little Pitcairn Islands in the South Pacific are the only British territory in the sun.
The Pitcairn Islands have a population of a few dozen people, the descendants of the mutineers from the HMS Bounty.