Bandar Seri Begawan October 3, 2017 Signifying the number 60 in Arabic, Mercu Dirgahayu 60 is a gift from the people of Brunei to His Majesty Sultan Haji Hassanal Bolkiah on the occasion of his 60th birthday. It represents the people’s gratitude, loyalty, and support for Sultan Bolkiah in achieving peace, integrity, prosperity and progress continue reading : Mercu Dirgahayu 60