Central European Time (Amsterdam)

The Netherlands uses Central European Time (CET/CEST). Amsterdam is the constitutional capital, while The Hague serves as the seat of government and home to international institutions including the International Court of Justice and the International Criminal Court. The Netherlands has a long history of precise timekeeping, with Dutch clockmakers like Christiaan Huygens inventing the pendulum clock in 1656, revolutionizing time measurement. Before CET, Amsterdam used Amsterdam Time (19 minutes 32 seconds ahead of GMT). The Port of Rotterdam is Europe's largest and operates around the clock on CET. The Netherlands punches far above its weight economically — it is home to major multinationals including Shell, Unilever, Philips, and ASML (the world's only manufacturer of extreme ultraviolet lithography machines). Schiphol Airport is one of Europe's busiest hubs, and its scheduling runs on CET. The Dutch timezone has Caribbean exceptions: Aruba, Curaçao, and Sint Maarten use Atlantic Standard Time (UTC-4), while Bonaire, Sint Eustatius, and Saba also use AST. The Euronext Amsterdam stock exchange, the world's oldest, operates on CET.