How Long do professional flutist practice a day? someone like James galway,emmanuel pahud or any other good musician

I don't know about them, but on a good day, I like to practice 2-3 hours, with the first couple of hours devoted to scales, tone and technique exercises, in addition, I like to practice difficult etudes..I tend to work on any pieces for concert or recordings after doing the latter...I have played for many years and still believe in doing all my major and minor scales each day...

omg thats alot for scales!
I never practie my scales that long i only play them once and im good

I should elaborate, I practice a lot of scale patterns, such as in The flutists formulae by georges Barrere, my favorite scale book, I also do thirds, sixths, arpeggios, chromatics..etc..

remember, technique is nothing unto itself, but it is the vehicle for expression..

Galway wrote on his forum a few weeks back that he practiced about 6 hours in one particular day.
I'm sure that this varies with his ability to have time and his needs but there are a few things that you need to understand.

1)It's not entirely how long you practice each day so much as how well you practice. Practice intelligently and as he puts it "investigativly ." How long you practice is only a part of this.

2)So, his practice is designed to accomplish certain things in each day and he has optimized his routine to get things done more efficiently in that amount of time.

3)He is most likely very disciplined mentally as well as very well trained musically.

4)If you intend to develop into a quality professional, you need to make your practice routine the part of music that is your day job in that it is a daily routine that encompasses most of your time and thinking in that day. Then when you perform, it is like a holiday.

that is so well said...I always tell student that the old adage "practice makes perfect" is not always true, it should be "perfect practice makes perfect"

one other thing I would add is that I always vary my routine each day, different scale patterns, diff etudes and tone studies..that way I don't get bored or stale..

So what's a good practice time for folks who have no professional goals just playing in a community band?

The community band question.
I agree with everything said above.
I will add that for a community band person "who has no professional goals" you still want to maintain your present talents and get a little better. I feel the number of times you practice is almost as important as how long you practice.
The frequency you are able to pick up that instrument and play it will help.

So if you don't have an hour everyday to practice, find at least 15 minutes on those days you don't have the hour. Find a 15 minute routine of scales, long tones, appegios, etc. 15 minutes goes pretty fast.

that is well said, the key is to use the time available to you in the wisest, most effecient manner possible..

I have one adult student, works 40+ hours a week as a hairdresser, but is a very good practicer, she learns one new etude a week, duet and solos...