Hourly manners in Antwerp - a quick primer

In Flemish, keep the following in mind when making appointments:

• 's moregens is 6.00 am to 12.00 midday
• 's middags: 12-18.00
• 's avonds 18.00-midnight
• 's nachts: midnight to six am

Some rules when it comes to keeping appointments in Antwerp - not too shocking rules, as it turns out, for me coming from the Southeast of the USA:

1. Make an appointment (afspraak) before you go see a Belgian. Telephone first.
2. Take a small gift: chocolates, flowers, wine, beer...
3. Arrive on time. 
4. When invited to a birthday, an Antwerpian will let you know by when you need to RSVP. Respect the date and RSVP. 
5. If you cannot attend, respond prior to the RSVP date with a quick note explaining that you will not be attending with an "omdat" - a "because," a reason why.