Questions about HAAD exam

Hi pips! I know I can get info from you nurses here. I just wana know if your going to schedule the HAAD exam, is it like the NCLEX where you can take the exam any day or are there only certain days or month that is given to take the exam? and where can I check those available dates if ever there is a fix schedule of the exam? hope my question is clear. pls help! thanks guys! :spin: