What are the rules for leaving Thailand on a border hop with a multiple entry visa?

When conducting a border hop with a multiple entry visa, there are generally no strict rules concerning the duration of your stay outside Thailand before re-entering. In practice, travelers have reported being able to leave and return on the same day without issues, though they should be prepared to pay for any visa on arrival for the country they are entering. The time spent at the border may vary based on the specific crossing.