ASA usually asks you to start at their next availible class date, but will push back a few weeks if you need to for personal reasons. I was hired on the 6th and the wanted me to start on either the 10th or the 24th. I told them that because of neeeding time to wrap up things at my other employer I would not be able to start until the begining of the next month , they said ok but that pushing it farther back than that may be difficult.