Ask a Belgian marketing team when the school holidays start, and watch them ask you which ones.
It is not a trick question and they are not being difficult. The country genuinely runs on more than one calendar, and a plan built abroad almost always assumes it runs on one.
Two calendars, not one
The consequence is felt in scheduling long before it is felt in creative.
School holidays do not line up
The language communities set their own school calendars, and those calendars have been reformed in recent years, so the weeks do not necessarily match and the mismatch is not stable from year to year.
For anything bought by families, that single fact reshapes the plan. A back to school push, a holiday push, a rainy afternoon product: all of them land on a different week depending on which half of the country you are talking to. Look up the current calendars for both communities before fixing a date, and look them up again next year rather than copying this year's plan.
December has two gift moments
For children, the first one arrives well before Christmas.
Sinterklaas in early December is its own occasion with its own logic, and a campaign that starts warming up in mid December has already missed the part of the season that matters most for toys, sweets, small gifts and anything a child receives. Brands whose headquarters sit outside Belgium and the Netherlands reliably plan for one December and find they were late for the one that counted.
| Moment | Who it actually reaches | What the video needs to say |
|---|---|---|
| Early December | Families with young children | This is a gift for a child, and it is in stock |
| Late December | Adults buying for adults | This is a good present, not a good deal |
| Back to school | Only one community at a time | Something dated, so run it twice |
| The summer weeks | Fewer decision makers at work | Nothing urgent, defer approvals |
| Long weekends around a public holiday | Everyone, briefly and distractedly | One thing, said fast |
The third row is the one that quietly doubles a budget line, and it is better to discover that in a plan than in an invoice.
What this does to a campaign plan
The instinct is to average: pick a date in the middle and run everything nationally. That is the expensive version.
The single national flight is the costly mistake
Running one flight means paying full price to reach half the country at the right moment and the other half slightly beside it.
The alternative is not two campaigns. It is one campaign with two release dates, which costs almost nothing extra in UGC because the asset is already being made twice for language reasons. If you are producing a Dutch version and a French version anyway, scheduling them independently is a calendar decision, not a production one.
That is the specifically Belgian saving, and it is invisible to anyone planning from outside.
The one week that is genuinely national
There is a moment when everyone is on the same schedule, and it is worth knowing because it is rare.
Public holidays and the long weekends around them are shared, and so is the general slowdown in the summer weeks, when approvals take longer and decisions wait for somebody's return. If you need one date that means the same thing everywhere, take it from that list, and if you need an approval in that period, ask for it early rather than assuming somebody is at their desk.
Keep reading
- Belgian Heritage Brands: Two Markets, Two Contents
- Your Belgian Campaign Is Already International
- Belgian Brands Expanding Abroad: What Your Content Cannot Carry
- The Owner Wants to Be in the Video
- The complete UGC guide for Belgium
Frequently asked questions
Where do I check the school calendars?
Each community publishes its own, and they are the only reliable source because the dates have changed in recent years. Check both, every year, before committing a media date.
Should we make separate videos for the two December moments?
Yes, and they are genuinely different videos. One is bought by a parent for a child under time pressure. The other is bought by an adult who is comparing options.
Does this apply to Brussels?
Brussels contains schools from both communities, so both calendars are live in the same city. Treat it as overlapping rather than as a third calendar of its own.
What about a small brand that cannot afford two flights?
Then choose the community where your buyers actually are and time it properly for them, rather than compromising on a date that fits neither. A correctly timed half is worth more than a badly timed whole.