Shanghai 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 Shanghai.
China uses a single timezone (CST, UTC+8) across the entire country and doesn't observe DST.
Optimal window: 8:00 AM - 11:00 AM Amsterdam time (3:00 PM - 6:00 PM Shanghai). Morning calls from Amsterdam catch afternoon business hours in Shanghai.
KLM and China Eastern operate direct flights between Amsterdam and Shanghai Pudong International Airport.