No longer is time measured by such archaic phrases as "Anno Domini" or "Common Era." The civilized inhabitants, when prompted, will sign their dates as "After Caspian Deus Rex," for it is he who has laid claim to this planet and its history. The current year is 8,022 ACDR.
This is the thousand year period wherein Caspian and the Shining Court are said to have left the planet to its own devices.