According to the Chinese media, World of Warcraft China players were the fastest in the world to hit level 90. The new level cap was added along with the Mists of Pandaria expansion update at 0:00AM (GMT +8) on 2nd October, with the first sighting of level 90 happening at 07:30AM (GMT +8) on the same day, clocking 7 hours 30 minutes.
This is also “faster” than the previous record, held by a player in the Taiwan server who took 9 hours. Update: The first China player to hit level 90 has now been confirmed to be a Tauren Warrior, taking 7 hours 29 minutes.