When arriving in Thailand, at least by land, you receive a piece of paper you should keep with your passport for when you depart. On this paper there is a date stamped.
My stamp is September 4 2013:
Now does this mean that I have until Sep 4 to leave, meaning if I cross the border out of Thailand at 11.50pm, 10 minutes before midnight on September 4 that all is well?
Or does it mean if I am found in Thailand at any time of the day of Sep 4 that I will be in trouble?