For me it is hard to answer. I spend many times a week when I have no access to the internet, like during driving or out on one of the reservations. I am often on one rez or another for anywhere from 2 days to a week.
Than when I get back on I seem to try to make up for lost time and stay on it 24/7 until I head back to the rez.
Right now we are snowed in and have not been able to even get on the road for about a week. Tomorrow we have to get to The Cheyenne River Reservation to check on our horses. We are still snowed in, but slowly the roads are being cleared, Inshallah, we will head out tomorrow and once we head out it will be anywhere from 2 days to a week before I have Internet access again. i can at Faith, Sturgis and Rapid City, but still don't know what to expect what we will find on the rez and I may get snowed in there for a week or longer.