Just been informed my return home flight out of Thailand has been cancelled and I must reschedule.

I have been here for 60 days visa waiver and extended that another 30 days.

My departure was scheduled for the day before the last date on my 30 day extension's passport stamp.

Can I stay until midnight on the date of that stamp or must I depart BEFORE the date on the stamp, in order to avoid an "overstay" please?

Thanks, in anticipation.

UPDATE: 24th June 2025. It has been confirmed that departure must occur by midnight on the visa expiry date stamp so that date means "visa valid up to AND INCLUDING such-and-such a date".

I have an update, being that I attended at the Immigration Office but, despite the unavoidable circumstances (being beyond my control) their policy disallows them from extending my visa, even by a week.

What they CAN (and will) do, however, is allow me to apply for a visa/extension, on the last day of my current visa only (not before) and then DENY that visa/extension and stamp my passport with "VISA DENIED. PASSPORT HOLDER MUST LEAVE THAILAND WITHIN 7 DAYS" (to effectively afford me a further 7 days of execution).

Do I REALLY want a "Thai visa application denied" stamp in my passport?

Not if it can be helped, I feel.

Thai airways TG917, LHR/BKK@ (21.30) hrs flight cancelled,12/4/24 that’s going to have knock on effects,. Been running like clockwork for ages, shame,I wonder if EVA will take some of the passengers, if so EVA (BRO68) is going to be chocka,.(update) the thai jet is still parked on stand opposite the terminal)