The Lisbon Meridian

The equator's position is fixed and determined by geography and mathematics. The prime meridian's position is not only not fixed, it's utterly arbitrary. It took until 1851 for most of the world to establish the Greenwich meridian as their standard, and several nations (France most notably, but also the Empire of Brazil) didn't accept it for decades.

Andalusada, ever the disorganized one, has reduced its own mess of meridians to three. And unlike IRL, the dominant one is based not in England-Scotland but in Lisbon.