It depends on which offfice and bank you use.
I suggest you repost and ask @DrJack54 wrt what office you use.
In my experience every bank and every IO in Thailand has their own rules on whichever day suits them.
As I live out of town/City i use an agent/lawyer to "hand hold" i,e, legally do all my Goverment etc transactions. She has Power of Attorney to get the bank statement etc so I only attend Goverment buildings for a few minutes with my hand holder to get photos taken or signatures done in person in front of the official.
10 minuets max in their dreadfull pig pens per visit, worth every Baht as there is NEVER a return, or worse still numeruous return, visits to banks etc for the never changing whim of the IO's.