Perak is a state in the northwest of Peninsular Malaysia. Perak is a constitutional monarchy with the Sultan as the constitutional head.
The current Sultan of Perak is Nazrin Shah, who became the 35th Sultan of Perak on May 29th 2014.
Sultan Nazrin Shah was born on November 27th 1956. Until 2017, this holiday was observed on November 27th. It was changed to the first Friday in November in 2018.