Serebii (Unofficial) (@serebii)

Serebii Update: The Pokémon GO Pass: December is starting to roll out. Runs from December 2nd 2025 at 10:00 local time to January 6th 2026 at 10:00 local time

Details are being added @ www.serebii.net/pokemongo/pass/gopassdecember.shtml