>>49550370>>495503703,000 years in the past. not only the time of AZ and his great war, it would also be around the time of the warring twin heroes' kingdoms in Unova based on the Relic Castle, Abyssal Ruins, and relic crown/gold etc.
perhaps also the time of Ultra Necrozma's original attack on the world to steal its light but i dont know if theres any specified time period of that.
also, motherfucking Colress