Banks are open weekdays 9:30 to 4 or 5, with some extending their business hours to coordinate with late-night shopping. Some banks are closed Monday mornings.
The main post office is open weekdays 9 to 6, Saturday 10 to 1:30. In every post office you'll also find the Postbank, a money-changing facility, which has the same opening hours.
Apotheken (pharmacies) are open weekdays from 8 or 9 to 5:30 or 6. There are always pharmacies on call during the weekend. The after-hours emergency pharmacy telephone number is 020/694-8709. Operators always speak English.
Most shops are open from 1 to 6 on Monday, 9 to 6 Tuesday through Saturday. Hairdressers are generally closed Sunday and sometimes Monday. If you really need a haircut on those days, try a salon at one of the larger hotels. Thursday or Friday (Thursday in Amsterdam) is a designated late-night shopping night—Koopavond (buying evenings)—with stores staying open until 9. Markten (markets) selling fruit, flowers, and other wares run from 10 to 4 or sometimes 5. Small nachtwinkels (late-night shops) selling food, wine, and toiletries, are open from afternoon to midnight or later. Supermarkets are open weekdays until 8 or 10 pm, Saturday until 6 or 8 pm, with most open on Sundays either from 11 to 7 or from 4 to 10 pm.