Next month I am going to Nong Khai to cross the border in to Vientiane to submit my ED visa paperwork at the Thai Embassy in Vientiane (I know it's a 2 day process). Does anyone know what time the border opens.... from what I have read it appears you can cross the border between 6-8 am and pay an extra USD1 for crossing the border outside standard business hours - is that correct?
TLDR : Answer Summary
The Nong Khai border crossing opens at 6 AM and is reportedly open until about 10 PM. Travelers can cross the border to Vientiane in order to submit their ED visa paperwork at the Thai Embassy, and there is no option to pay an additional fee for early crossing, contrary to popular belief.