Rhythm > Schedule
A schedule is stagnant, but meeting rhythms are dynamic.
Instead of fixing times, fix the outcomes and loose timings for when they should happen.
A simple rhythm for work is:
Deep work early in the morning
Meetings (especially external ones) in the afternoon
Physical activity in the evening
Maybe a second burst of work in the night
This simple rhythm keeps people focused on the work to be done, not on coordinating meetings.
Rhythms keep the enviornment alive - something that's important for creative work.
Rhythms come up naturally. Schedules are usually imposed.
Schedules do help in spreading out the workload. Just having a few critical tasks planned out for the next few days is enough. Packing your entire day just because you have a calander saps your system.