If it's not done by 1pm it isn't going to get done. During the winter I was pretty consistent with 3 to 4 days a week on the trainer. During the spring - I try to head out as soon as the kids are gone to school. It gets so hot in the summer that I'm usually up and out by 6am and headed toward the ocean so I can take advantage of the breeze coming off the water. Plus - if I decide to ride out Sandy Hook or along Ocean Ave, I like to be headed home before the beach traffic picks up.
Afternoons/Evenings are family time, getting the kids to all their after school activities (baseball practices/games, art classes, tennis lessons blah blah blah), getting dinner on the table, cooking out, etc etc. Ya'll know how that goes.
T.