I found a way to glitch Lucky Finish happy hour buff with unlimted time and it only works for lucky finish others dont work.
First you must be on during happy hour and if it has lucky finish then keep checking the kal website to see when happy hour ends and 5 mins before its over disconnect kal somehow (like pulling ethernet cord) and walk around and type stuff in chat until you get connection lost. Then hit ok and do not exit the game. wait till happy hour is over and log back in and it should be flashing and you now have unlimted time on lucky finish enjoy.