🌞 Hello, I entered Thailand on a 45-day visa exemption. Then I got a 30-day extension. If the latest stamp in my passport says 'permitted to stay up to 16 Dec 2022,' for example, that means it's fine for me to exit the country on the 16th of December, and then reenter again on the same day via a land border, doesn't it? I was going to exit the day before the expiry, but I underestimated the overland travel time, so now it feels easier to leave on the date that's stamped in my passport. Thank you. 🌴
Update: Thai immigration at the Pedang Basar border crossing didn't let me reenter Thailand the same day that I'd exited. They said I had to spend a couple of days in Malaysia before reentering. Which was annoying - among other things, I'd already booked a hotel in Thailand and I didn't have any Malaysian currency and my phone batteries were low.
TLDR : Answer Summary
The original poster sought clarification on whether they could leave Thailand on the expiration date of their visa and reenter on the same day. After some exchanges, it was clear that while generally allowed, specific borders may enforce waiting periods before reentry. The user then encountered issues at the border when they were not allowed to reenter on the same day and were informed they needed to spend a few days in Malaysia before returning.