Because realm connections
Honestly given that we know they used Oracle RDBMS in the past and probably still do? Each realm is probably just a partition.
Legion Timewalking.
It’s a mandated time off period by the Collective Bargaining Agreement (CBA) between Blizzard and Hamsters United International (HUI), the union that represents the server hamsters.
This allows all the server hamsters to be off work for an extended period for family gatherings, union meetings, and wheel upgrades.
/moo
See, i told you all!!
They’re connecting some realms so they’re giving themselves more time than usually because sometimes that can get a bit uh…not easy to clean up.
Also consider how realms read other realms. You realm may need to be worked on briefly to read the other connected realms properly.