Exclude Weekends from Time Entry Rule

Summary

Exclude Weekends from Time Entry Rule

Content

Hi Experts,

Has anybody came across any requirement wherein 'system will produce a relevant error message if an employee enters less than or more than 8Hrs of a day on the timecard, however on Weekends then can enter any hours. So basically, the Time Entry rule will be applicable only on weekdays.

I reckon that I need to write a Time Entry fast formula replicating the standard one however, I am looking for a specific guide (the FF user guide is not helpful here at all) which can give me some ideas of context and formula functions which I can use.