I am from Malaysia and I visit Thailand very often.

When I enter Thailand, I was given a 30 Days Stamp on arrival.

Can I visit Thailand off and on (with the 30 Days Stamp) many times.

Meaning can I do it all the time, going in and out with no time limit.

Or I can do it for 3 times only in a year like a Visa Run (valid for 3 months).

Is there a time limit for doing the 30 Days Stamp in a year ?

Your advice is much appreciated.

Thanking you all in advance.

 

are you flying in

Overland the limit is two per calendar year .

By Air they are unlimited, though you may be question and refused entry by Immigration if they feel like it 

OP, entry via air is unlimited as indicated by previous post.

The time between entries is important. 

Most likely, I would take a ETS Business Class Train from KL SENTRAL (Malaysia) to Padang Besar.

Then from Padang Besar (Malaysia) I will take a Shuttle Thai train to Hatyai.

The journey from KL SENTRAL (ETS Train) to Padang Besar (Malaysia/Thai border town)

takes only a 6 hours ride. From Padang Besar, the Thai Shuttle train will take an one hour

drive to Hatyai. All these trips were before the Covid Pandemic. It seems that this Padang Besar border crossing will be opened by the month of May. Hopefully.

 

11 hours ago, Mac Mickmanus said:

Overland the limit is two per calendar year .

By Air they are unlimited, though you may be question and refused entry by Immigration if they feel like it 

For Malaysians entering by land there is no limit on the number of 30 day visa exempt entries they can do. It is in a special order for them.

 

I attach this (2019) "ETS Business Class Train" review for your info.
In case you may want to take this Business Class Train from K L Sentral,
Kuala Lumpur to Padang Besar (Thai/Malaysia border town). A Six Hours
trip. From Padang Besar you can take a Thai Shuttle Train to Hatyai
Shuttle train runs only twice a day. Please check it out.
Before the Covid Pandemic, there were six trips from KL Sentral to
Padang Besar. New trains include Business Class, Gold Class, Platinum Class.
The best is the Business Class. It was reported that the Malaysia/Thailand border 
will open again from May. Please check it out. BTW, from Hatyai I would take
a Train to Bangkok after staying a night in Hatyai. 
In closing I attach a (2019) ETS Business Class "video" for your viewing.
https://www.youtube.com/watch?v=p8ImH5H-18k

 

13 minutes ago, Charlie said:

I attach this (2019) "ETS Business Class Train" review for your info

Thanks for the details however imo why would someone do that.

If the destination is Bangkok then fly KL to BKK.

Simple.

To the best of my knowledge you can come & go by air as many times as you like.

Just make sure a couple of the trips are not the full 30 days.

Never questioned