With starting earlier, you're getting into more party-driven impacts. A lot of parties will be planning their day at certain early hours ahead of the opening of the House. Regional caucuses might be meeting and other groups of members might be meeting at that time. That would have to be taken into consideration.
With any change to a schedule, you have to look at what other stuff is scheduled in the time you want to use up as an alternative. I'm not familiar with all the things that members are doing earlier in the day, but certainly any start time the House wants to implement is doable. There would be impacts obviously on staff who would have to be here in advance of the opening of the House. If you were talking about an 8 o'clock start for the House, that obviously would have quite serious impacts on everything from collective agreements, to overtime, to whatever. It could be an important change.