Day of the week might be a useful sync to keep, but for most people (certainly for me), the time of the day is way more important. There is a risk that sleep/a

Day of the week might be a useful sync to keep, but for most people (certainly for me), the time of the day is way more important. There is a risk that sleep/awake cycles float once rigid schedules disappear. This happened to me once in grad school during a semester when I had a fellowship, so did not have to teach and could just work on the thesis. While first thought was "why should I care, I can still work the same" this quickly resulted in a huge loss of productivity until I forced a correction. An hour or two each way is nothing (in fact may be good as one adjusts to a more natural schedule), but I would guard aggressively against switching to a nocturnal lifestyle. My 2c.