Well, let's use the local boys for an example.
Most home games for the Sharks start at 7:30. But every now and then, a game starts at 7. There are two left: 23 March and 4 April. This isn't the same as a game starting at noon on a weekend. It is likely that players show up at the same time as a 7 start as they do as a 730 one. At a minimum, it seems safe to assume they don't show up a whole 30 minutes early.
The result of this is that they are rushed onto the ice. I would think it makes sense to fade the Sharks in the 1P when they start at 7 at home and bet the over if both starting goalies are in. I haven't tracked this, though.