Does the thirty days begin the day after arrival or the day you arrive?
The day after you arrive, but don’t leave your departure until the last day. Various unpredictable things could cause you to overstay. This is the voice of experience - Please take heed.
I always thought it was the day you arrive.
So you are saying, if you arrive at 00:05 (which I did one time), you are in effect given 31 days?
I always count from the day I arrive.