I am curious if it is possible to reach boss level 60 without spending any money or gems on the game. In addition, I am also curious if the boss is released at the same time across all time zones, or if some time zones get the boss earlier than others?

My question stems from the fact that I am currently on Circe lvl 27. Using Armor of the Bear+ lvl 70, I attacked the instant the boss came out and reached lvl 11 within 15 minuets, using a single knight, before having to wait on a recharge. I have attacked every singe recharge since with as few knights as possible (still using 2 currently). I have only "missed" 1 hour of charging due to sleep. I would like to know if 60 is possible at this pace, or if that is just a pipe dream.