Apologies if this is obvious to many but better to check then fall fowl. If I enter visa exempt (From Australia), the 30 days starts on the date of the stamp in my passport on day of arrival and I have to leave on or before the 30th day? Booking flights and want it right. Thanks in advance.
TLDR : Answer Summary
When entering Thailand under a visa exemption, Australian citizens receive a 30-day stay from the date stamped in their passport on arrival. This means that the arrival day counts as Day 1, and they need to leave on or before Day 30. However, it's possible to extend this stay by obtaining a one-time 30-day extension at a local immigration office for 1,900 THB, provided they can show proof of onward travel within the initial 30 days. Thus, they can stay for a maximum of 60 days if the extension is granted.