If you mean to apply for a visa before you visit Thailand, like the retirement visa as in application for a new Non Immigrant O or O-A or O-X visa, please look at the requirement of the Thai Embassy in the country where you apply.

And before others start their own interogations in why, what and how, I close it down as your question is answered.

As you answered yourself, this is all on a case by case basis.

Have a plan B ready to or apply for the 1 year Extension of a trip to another country.

I hope you can understand that we can not tell what an unknown Immigration Officer at an unknow immigration booth at an unknown international airport in Thailand on an unknown date will do. For sure we can tell he will do his job, if that is with or without asking a question is his/her personal decision.

Sounds like all is correctly done, thanks for the report.

@Stephen ********

That is not the Thai border, but I guess you refer to the Immigration rules of Cambodia who mention that persons need to stay minimum 1 night.

IF you got an Admitted to stay period of 30 days it is called an Visa Exempt Entry, NOT a Visa on Arrival which some countries need to buy for 2.000 Thb and only give 15 days of stay.

Yes, if you re-enter by land you get a new 30 day Visa Exempt Entry but can only do this twice a calendar year.

I would say Monday 22 August.

And that is it. Yes, we know that a Thai Embassy makes money with the sales of a Visa and they not get any income by telling you that Visa Exempt Entry is possible.

I close the post before more people are going to share what the embassy posted in what ever country.

The Royal Thai Police Immigration Bureau sits at entry points at land borders and airports and they decide if you may or may not enter Thailand.

There is no minimum time to return to return to Thailand.

If you fly out, you can take the first possible flight back into Thailand,

If you walk out by land, you can directly turn after being stamped in/out by neighbor country, but be aware you if you do this it is only twice a calendar year using land borders.