Two locals at the top define the window, and three functions apply it (shard, GRD reward dispenser, quest server). Change the locals once and all three follow. 

local creditsEventStart = "2023-06-09T05:00:00Z"
local creditsEventEnd   = "2023-09-14T00:00:00Z"
-- inside ConfigureShard() / ConfigureGRD() / ConfigureQuestServer():
cvars.store_creditsEventStart = creditsEventStart
cvars.store_creditsEventEnd   = creditsEventEnd
Set both to dates around today to run the event now.

Comments

1 + 3 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.