Hong Kong is 7 hours ahead of Amsterdam during European summer (CEST), and 6 hours ahead during winter (CET). When it's 9:00 AM in Amsterdam, it's 3:00 PM or 4:00 PM in Hong Kong.
Hong Kong uses HKT (UTC+8) year-round and doesn't observe DST.
Optimal window: 8:00 AM - 11:00 AM Amsterdam time (3:00 PM - 6:00 PM Hong Kong). Morning calls from Amsterdam catch late afternoon business hours in Hong Kong.
KLM and Cathay Pacific operate direct flights between Amsterdam and Hong Kong International Airport.