Mother's day is an important day in many countries around the world is held to honor mother. Domestic Thailand , Mother's Day falls on the 12 in August every year, which is birthday of the queen, Her Majesty Queen Sirikit is the daughter of His Highness Prince Chandaburi Suranath (Mom Chao Nakkhatra Mangkala Kitiyakara) and Mom Luang Bua Kitiyakara (nee Mom Luang Bua Snidwongse).