What is the difference between Gross and Effective Hours?

Gross hours refer to the total amount of time an employee spends at work from the moment they clock in to the moment they clock out, including lunch breaks and other breaks. 

Effective hours, on the other hand, only include the time an employee spends working on their tasks, without counting lunch breaks or other breaks. This is calculated by adding up the time between when employee clocks in and when they clock out for each work period.