Employee Resignation Dilemma: Should We Count the Last Working Day as Saturday or Monday?

Seeking your guidance on the below scenarios:

First Query: An employee has been absconding; the last day present on duty was Saturday (Sunday we have a weekly off). He remained absent for the next 10 days. After that, he sent the resignation. Should his last working day be considered as Saturday only, or are we liable to pay him for Sunday as well?

Second Query: An employee submitted his resignation on Monday (was not working, came to the office to submit his resignation only). Should his last working day be considered as Saturday or Monday? If Saturday, is he entitled to get paid for Sunday as well?

Looking for suggestions.

First Query:
An employee has been absconding; the last day present on duty was Saturday. (Sunday is our weekly off). He remained absent for the next 10 days, and after that, he sent the resignation. Should his last working day be considered as Saturday only, or are we liable to pay him for Sunday as well?

Saturday will be his/her last working day

Second Query:
An employee submitted his resignation on Monday (he was not working and came to the office only to submit his resignation). Should his last working day be considered as Saturday or Monday? (If Saturday, is he entitled to get paid for Sunday as well).

Even in this case, his last working day is Saturday only

In both cases, the employee is eligible for Sunday W.O. payment (presence) as they worked for the whole previous week.

Suresh