NSSG, and this is maybe a good note for all new jpouchers, for me it depends a lot on what I eat. usually I eat a cheese, grit, meats casserole for breakfast, and a chicken cobb salad for lunch. If I do that I go maybe once around 8am (12 hours after dinner), and then most days I don't have to go until around 4:30-5:30 which is incredible for me.
It doesn't matter what I eat, I am very regular and similar to your schedule, 8AM, 4;30-5:30 and then once before bed.
I have difficulty emptying my pouch if it is not liquid and can take me some time to empty but I'm not living in the bathroom like I did with UC. I am fortunate that I can always sleep through the night without getting up to empty.