When you're in government, you have to be here more often. I think there are later hours, but you also have more resources and more people to do things, and being in more than one place at the same time is less of a problem. When the House sits, you have to be here.
When you're in opposition it's not as crucial. I like it when the House goes on these autopilots; it frees up both sides. You can go home and not worry that something is going to happen and that you're going to have to rush back. Generally, when the House is sitting it's tough on both sides; it doesn't matter whether you're in opposition or government.