Ubon The eastern provinces of the Northeast and Thailand . It is the parish seat of linear time, the country's main longitude 105 degrees East is the first province to see the sun before other areas around the country, Upon Ratchathani is a large town on the banks of the river with a long history of more than 200. years, a vast area Later be divided into new counties is Yasothon and Amnat Charoen in the year 2515 in the year 2536 , if the total area of the two provinces separately. Ubon Ratchathani is the ranked 1 area of Thailand.