When i go i stay all day usually. Last season i did maybe 3 days where i left after couple runs becauze it was solid ice. Otherwise im good for 6 to 8 hours the other days. I met so many people on lifts who come up for early morning laps maybe couple hours then go home. Im like "wtf"... we have a foot of fresh pow dude. Lots of outa shape riders out there. .. sad... sad...
Pretty much anytime you take any line, no matter what the length, that's a "day".
However, I always plan to ride first to last chair for my days because I have to make the few days I get really count. Sometimes I might fall short, wake up a little late and only make like 7.5 or 7 hours of the 8 or however long it's open, but still, out East as a weekend warrior, our season is so short you have to ride as much as you can while it lasts.
When you have the board attached to your feet that counts as a day in my book.
Would I ride 6-8 hours a day every opportunity? Absolutely. But usually the stars are not aligned. Backyard bungee sessions, parking lots with winches, street drop-ins, 3hrs after work in a poorly lit, bombed out terrain park dodging denim-clad gapers? You bet I count it.
I'll take whatever I can get whenever I can get it.
Day with wife: Arrive at mountain 1100 AM sharp. Do 1 run maybe 2. Eat lunch for an hour. Do post lunch run, maybe 2. Go home.
Day by myself or with friend: 0900-till lift closes. 15 min lunch. Provided conditions are good.
Work day: 0900-1200