Ncp calculation in pf returns - employee is absent for half day - gross salary for 29.5 days is to be taken into consideration?

If an employee is absent for half day ,i.e., in a month of 30 days , he has worked for 29.5 days, then how to calculate the NCP value in PF Returns and in that case the gross salary for 29.5 days is to be taken into consideration or the gross salary for 30 days ?

full 30 days is to be considered,
NCP stands for non contributory period, and if the employee has taken half day leave it would be counted as present

Thank you Sir. So gross salary value also to be filed as 30 days value?