Imamedic: Staffing levels at ATC centers are pretty much constant on a day-to-day basis (a little lighter on weekends due to less traffic), but levels are dramatically reduced in domestic areas from 10 p.m. to 6 a.m. due to lack of traffic.

In the oceanic areas, however, traffic is at its peak during the overnight hours, so they're well staffed at those times.

You could probably run statistics forever and try to draw some conclusions, but in the end, engines and airframes don't know the day of the week.

[This message has been edited by letiole (edited 02-01-2000).]