Bintulu is a coastal town, and the capital of Bintulu District (7,220.4 square kilometers) in the Bintulu Division of Sarawak, Borneo. It is about 650 kilometers from Kuching and about 215 kilometers from either Sibu or Miri.
I recall the 10 o'clock whistles at the old Shell complex at the town area. This whistle will go off every Thursdays at 10 o'clock mornings in those good old days.