Moderate japanese culture as most of the Japanese who get to work in Singapore are high flyers who are rotated every 3 years and most of them have worked in America / Europe.

Having said that there are also some who despite having the above still bear traditional values. My ex Jap dept head mentioned in our dept meeting," I do not have a good opinion of staff who leave the office at 6pm".....dafuq.. Not very busy also they want you to stay in office and facetime.

Then again my dept was a tokyo unit and half of the 20+ staff were high ranking japs.
In local departments where the majority of the staff are locals this is rarer.