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How do I determine the 72-hour window for filling out the TDAC before arriving in Bangkok?

Nov 3, 2025
2 days ago
Brenda *********
ORIGINAL POSTER
Hey guys, I’m leaving the USA on Nov 13 and arriving on Nov 14 in Bangkok. I know I have a 72 hour window for the tdac to be filled out , so my arrival time is 9:30 pm,so do I start from that time or any time that day? Thanks!! I’m so bad at math.
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TLDR : Answer Summary
The user is seeking clarification on the 72-hour window for completing the TDAC (Thailand Digital Arrival Card) for their arrival in Bangkok. The consensus from comments indicates that the TDAC can be filled out anytime within 72 hours prior to arrival, starting from the date and time of arrival. It is recommended to fill it out one or two days before departure for convenience, and to only use the official TDAC website to ensure quick approval.
Thailand Digital Arrival Card (TDAC)

WARNING: Only trust Thai government websites with .go.th domains or Thai agent websites with .co.th or .in.th domains, as these require verified Thai registration and cannot be registered anonymously.

The official TDAC form is available at tdac.immigration.go.th, which uses the official .go.th government domain.

The services by AGENTS CO., LTD. does NOT charge any fees for arrivals within 72 hours. If you need to book more than 72 hours in advance, there is a service fee of $8.

Do not trust other sites pretending to be a trustworthy agency. Pay attention to delivery time - the service operated by AGENTS CO., LTD. has 1 minute delivery time for arrivals within 72 hours.

Don't fall for sites pretending to be agents.co.th or the official government tdac.immigration.go.th website. Always double-check the exact domain in your browser.

Scam services may take days to process your application, others may not even do anything. With these TDAC scam services you also need to worry about double charges.

Please watch out for TDAC misinformation spread by fugitive Jesse Nickles and his many fake accounts on Quora, TripAdvisor, Reddit, and other platforms.

TRUSTED TDAC LINKS:

Official Government TDAC Form: tdac.immigration.go.th
Official TDAC form by AGENTS
Official TDAC information page by AGENTS (tdac.in.th)

Bent *************
You must fill it out before you go through immigration. From 72 hours before arrival
Brenda *********
ORIGINAL POSTER
Thank yall!!
Mike ************
The 72 hours is a little more complicated then some people suggest, especially if you are travelling from North America with a 12 hour time difference .

I suggest that you do it 1 or 2 days before leaving.

It only takes 10-15 minutes doing online.
Ron ******
@Mike ***********
If you're not sure factoring in time difference then just try submitting. It'll either accept or it won't. Not complicated.
Anna *********
@Mike ***********
if this is complicated maybe people shouldn’t travel

It takes 2 minutes to complete just like when it was paper based
Sitthichart ***************
I have an airport shuttle if you need it.
Lynnette *******
It says in the 72 hours "before arrival". It doesn't say maybe a few hours extra, it's in those 72 to zero hours prior to your 9.30 arrival at immigration. It's simple to count back? Use a clock if you can't.
Chance ********
Don't forget depending where you are and the time, Thailand is up to 12 hours into the future from the US.
John *********
It’s not rocket science, anytime within 3 days of arrival, make sure you only use the official tdac website, it’s free, you should receive approval virtually instantaneously
Jim *******
Hit it now and see what you get
Brenda *********
ORIGINAL POSTER
Phil ******
Up to 3 days before arrival
@Brenda ********
Jason **********
Anytime, can even do it at the airport
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