Hello. I need to make sure I do not waste any days on my visa, so I do not want to go and extend too early. If my 60 days is up on the 29th, and I go to Wattana tomorrow (the 26th), will the extension start on the 26th or the 29th? Thank you for your help!

It will start at the end of current permitted to stay stamp so nothing lost in doing early.

All extensions are from your current permit to stay date not the date you apply.

Always a good idea to go early.

Thank you so much. I will head there tomorrow then. If I already have my forms filled out and copies made, can I just get a number and wait? Do you have any idea the average wait time if I get there when they open at 830?

Don't forget the passport size photo.

If you get there at 8.30 AM, my guess is you will be out in less than 1 hour.

Yes, just go and get a number, if you are CERTAIN that you have everything (show the number person - they will check generally).