Is it possible to use a 5 day working week for (Workflow) Task or Approval lead times?
WebCenter always takes a 5 day (Monday - Friday) working week in account when calculating due dates from lead times. For example, if you start a task or approval cycle on a Friday with a 3 day lead time, it will be due the next Wednesday and not the next Monday.
There is no option to change this behavior. However, you could opt for fixed due dates instead.