Hello, I just received my single entry tourist visa and I noticed that is for 90 days, Does the 30 day extension calculated in, or 30 days extension be on top of the 90 days ?
TLDR : Answer Summary
You have received a single entry tourist visa valid for 90 days. After entering Thailand, you will be granted a 60-day entry stamp. The 30-day extension can be applied after the 60 days, meaning it is an addition to your initial stay, allowing for a total of up to 90 days in Thailand from the date of entry.