Will I face penalties for extending my visa after it expires on a weekend when the immigration office is closed?

To everyones info, this morning I went to have my extention, I arrived 10am and I just got my passport back with the 30 days stamp, it took less then 90 minutes. No one even mentioned overstay, even if my expiredate was 27. May, so I guess it is as I hoped; they don’t charge overstay if the office is closed on your expiryday, as long as you renew first available day. Back in 2020 I showed up three days ahead of my expirydate, and was refused, having to make a new trip on the expiryday. I understand from other posts here that they have changed that rather meaningless practice. However, intensively interesting to read uninformed peoples view on others time schedule, which they know nothing about, and which is completely irrelevant to my question.