Saudi Arabian National day is always celebrated on 23 September. Known locally as Al-Yaom-ul-Watany, it marks 23 September 1932, when King Abdulaziz announced the unification of the country as a kingdom. If the National Day falls on Saturday, Sunday will be a public holiday as compensation.
Also on Saudi National Day, people celebrate all over Saudi Arabia. The National Day of Saudi Arabia is an opportunity to learn about the work of the King Abdulaziz, how he established the Kingdom of Saudi Arabia, and what he did to unify his country. Therefore his memory is celebrated in the national day.