hi Rachel
I can only tell you how long my aromatherapy massage takes ........... not sure about others.
I suppose it is 'how long to book out in the appointment book' that you want to know???
my aroma massage takes 1 hour and 15 minutes (as taught at college) but I always allow 2 hours as I like to make the client feel relaxed before the massage............ a good consultation and time to blend the oils.......... time for the client to undress and get on the couch. then after the massage I don't like the client to feel as though they are being pushed out of the door and I like to get some feedback about the massage if possible.
then of course I need time to open windows, change bedding and get ready for the next client................ so I feel that 2 hours appointment time works well for me and the way I like to work.
others may be totally different
hope this helps
blessings, Marcie