Advancing Century

Advancing Century (or AC for short) is the timeline Advancing Armor Bast and it's related media take place in. The Japanese for Advancing Century is センチュリーを進める (Senchurī o Susumeru), or literally "I Advance the Century".

The Advancing Century began after humanity advanced far into space, created space colonies for people to be born and raised in, and made commercial space travel.

Series (Chronologically)

 * Advancing Armor 00 Bast - AC.124―134
 * Advancing Armor 00 Bast AC/132: Project Magi - AC.132
 * Advancing Armor 00 Bast: Death Aggressor - AC.135
 * Advancing Armor 00 AC/173: The Coming of Neith - AC.173

Chronology
From what is said during the series, the AC calendar was formed during the year AD.3142, so making the events of Bast and B:DA take place in between the years AD.3266 and AD.3277.