In our use case the client would define different working hours per day.
For example: Monday to Thursday: 9am to 17pm, but on Friday: 10am to 14pm.
Issue 1: Sharepoint can't handle this type of working hours definition.
Issue 2: In Nintex forms we need the working hours definition to calculate escalations and generate reports.
Have you ever encountered similar problem? Do you know any possible workaround or solution?