As a general rule I use my 18 holes on a Saturday morning as my 'game' day, even if not playing a qualifier.
I would class my work on Sundays (Practice 9 holes or 2 hours chipping and pitching if the course is closed for comps), 11 holes on Thursday nights and my odd range session of a Tuesday as practice.
At the moment I've set up a practice area in the conservatory. I just use it to swing the club and keep the feeling going. This can add up to about 30mins to an hour a day. Then a bit of chipping practice in the garden. I voted 1-2 hrs as it can be a bit hit and miss as some days I don't get time, at this time of year if rather be out on the course. In the winter I will have a couple of range sessions and indoor practice.
It depends. In the summer I may have one short game session but I am trying to play as much as I can and not practice as much. In the winter I will practice 3-5 hours per week to keep the swing going or work on drills following a lesson