Override Time card entry for Public Holiday

Summary:

Hi,

We have set up the public holiday to display on time card automatically. Public holiday hours will be picked up from the work schedule. We have a requirement , for part time employee the public holiday hours should be displayed based on their contracted worked hours (in a week)/5. If employee contracted to work 20 hours a week, public holiday should be displayed as 4 hours .

Currently the public holiday is picking as per the schedule on that day(example if employee scheduled to work for 7 hours on that day, public holiday is displaying as 7 hours).

Is it possible to override the time card entry for public holiday through rules?