I play dice every week ends, i think it's about 1-2hrs playing. Still it depends on how much money you willing to loose. If you put big amount and bet small it will last long.
Only play dice , and so I will only spend at most 1 - 2 hours on it each time. When I am free, I could be playing dice a few times a day.
I also do a dice game in every weekend. I was just playing dice in rollin.io and unfortunately I'm lose 0.01 btc :-/ unlucky today.
for long play I depend on my balance. if it runs within 30 minutes so I played along it.