We used to have a rigorous schedule. Arrive at the office between 8-830. Make coffee and chat. At 9am we started the daily meeting. We all read what we were going to do today to each other. By then it was 1130 and so we broke for lunch. After lunch, at 1300 we would do the thing we said we would do. At 1530-1630 we would submit out updates to the project management system and produce tomorrow’s report for us to read to each other. 1700 we would go to the bar then head home around 1830.
When I started working for myself I would usually start around 9 to finish at noon, including travel time.