I can't find any recent info; if I have my work permit cancelled, do I have 24 hours or 7 days to leave the country - or can my employer request I have a few days? I finish work on the 1st of February, but am leaving the country on the 12th.
TLDR : Answer Summary
When your work permit is cancelled in Thailand, it is essential to take the receipt of cancellation from the Department of Labour (DOL) to the immigration office along with a termination letter from your employer. The immigration office will cancel your visa extension based on the termination letter date. It is advisable to have your employer specify your final working day as the date you plan to leave the country, which may allow you to stay until that date.