So this has been troubling me for a bit. I've been wondering, how is boss cooldown calculated, or rather when does it take effect? Some have said the cooldown timer starts after entering the first run, while others have said the cooldown starts after you end the second run. Some have ALSO said that i.e. Zak run 1 has it's own timer and Zak run 2 has it own timer as well. Need help on clarification. Thanks!
Your cooldown starts as soon as you enter the boss room, and both your daily runs have their own cooldown timer. To put this into an example: Zakum run A started at 13:00 servertime and ended at 13:50 servertime, Zakum run B started at 14:15 servertime and ended at 15:00 servertime. The next day you will be able to enter a Zakum run again after 13:00 servertime, and a second time after 14:15 servertime.