Breakfast is from 7am to 9am, and the earliest you can upload after breakfast is 7:30am. it's a 5 minute walk from breakfast to the base of the mtn where you upload, and it takes roughly 30 minutes to get up to the top of the park. The glacier shuts down at 3pm, and all campers campers download back to the base of the mtn. So if you're a real keener, you can be on snow from 8am to 3pm and the average time on hill works out to roughly 6 - 7 hours.
Compared to Windells, I believe they are on hill from 9am to 3pm. So you can get a little longer on hill with us, but basically our on hill time is very similar.