A month of social media holidays with the designating body named on every one. Pick month, year and niche; the moving dates are worked out for the year you post in.
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Every date names the body that owns it. The dataset ships inside this page; your picks are never sent anywhere.
What is a social media holiday, and who decides?
A social media holiday is any dated observance you can build a post around, and they come in three kinds that the big lists never separate: days a public body designates, days a company created and owns, and days with no designating body at all. World Children's Day is the first kind, designated by the United Nations. Small Business Saturday is the second: American Express created it in 2010.
The third kind is the largest. Nobody designates Black Friday; it exists because everyone behaves as though it does, and it's still worth posting on. Knowing which kind you're looking at is what tells you whether the day arrives with a theme or only with your own.
How this calendar works
How each date is worked out
The date rule, then the owner check
Example:
November 2026, no niche. The calendar prints: 11 dated days in November 2026. 5 designated by a named public body. The first card reads Sun, 01 Nov, World Vegan Day, No owner found; matched by 6 of 7 major calendars. Thanksgiving Day is computed as the fourth Thursday and prints Thu, 26 Nov, Designated by US federal law. Black Friday follows on Fri, 27 Nov, Small Business Saturday on Sat, 28 Nov, Created by American Express, and Cyber Monday on Mon, 30 Nov. GivingTuesday is absent from November 2026 because the Tuesday after Thanksgiving lands on 1 December.
How the dates earned their place:
Switch the year and thirteen dates move, three of them into a different month; everything else stays put.
What a sourced calendar gives you
Six ranking holiday calendars, counted
We read the six biggest holiday calendars in August 2026 and counted what each one gives you. The counting rule: a dated entry is any line that pairs a month and a day number with a name.
| Calendar | Year the page is for | Dated entries | Entries with a linked source | Days labelled by who designates them |
|---|---|---|---|---|
| Brandwatch | 2026 | 222 | 0 | 0 |
| SocialBee | 2026 | 117 | 0 | 0 |
| SocialPilot | 2026 | 271 | 0 | 0 |
| Sociality.io | 2026 | 270 | 0 | 0 |
| HubSpot | 2024 | 243 | 0 | 0 |
| Loomly | 2025 | 273 | 0 | 0 |
| Total | 1,396 | 0 | 0 |
Two of the six answer this year's search with a different year's page. And a simple weekday check, a day named after a weekday must fall on that weekday, catches two mistakes on Brandwatch's 2026 list: Small Business Saturday on Sunday 29 November and Blue Monday on Tuesday 20 January.
A list of fixed dates quietly hides the thirteen that move, and those are the ones a business actually plans around.
A month here holds up to eleven dated days, and filling all of them turns a feed into somebody else's listicle.
Days with no designating body have no yearly theme, so anything official sounding you attach to them was made up.
Take the days with no owner. They carry no official theme, which leaves the whole angle to you and nobody to contradict.
Pick the designated days inside your subject, then read that body's own page for the current year's theme before you write anything.
Work from the four days that follow Thanksgiving. They are computed here, so build the schedule once and only change the year.
Copy one month per client as plain text. Every calendar you hand over then carries the same owner labels and the same date rules.
Treat a date as a claim. Before you build a post around it, ask who designates it and check that its rule matches the year you are posting in. Most calendars answer neither question, which is exactly why their dates drift.
Turn a date into a campaign
Schedule the DM campaign that runs on the day you picked, on Meta's official API, and see who replied. The free plan covers 100 active contacts a month, 3 automations, 3 campaigns and 50 AI credits.
Frequently asked questions
A social media holiday is any dated observance you can build a post around: New Year's Day, World Children's Day, Black Friday, Star Wars Day. The term covers three very different things. Some are designated by a public body, such as the United Nations or a national statute, and carry a published theme each year. Some were created and are owned by a company, the way American Express created Small Business Saturday in 2010. The rest have no designating body at all and exist because enough people act as though they do. All three are usable. Knowing which one you are looking at changes what you can honestly say in the post.
It depends on the day, and that is the point. United Nations days are established by a General Assembly resolution proposed by member states, which is why several entries here can name the resolution. World Health Day and World Mental Health Day come from the World Health Organization, International Literacy Day from UNESCO, World Food Day from the FAO, International Coffee Day from the International Coffee Organization. The eleven US public holidays are set in law at 5 U.S.C. 6103. Mother's Day and Father's Day sit in a different statute, 36 U.S.C., which fixes them to the second Sunday in May and the third Sunday in June without making either a public holiday.
We checked every official date in August 2026 against the page of the body that designates it, never against another calendar: United Nations days on un.org, World Health Organization days on who.int, UNESCO days on unesco.org, World Food Day on fao.org, and the US public holidays on the Office of Personnel Management's 2026 schedule. Days with no designating body cannot be checked that way, because there is nothing to check against. Those carry a different test: the date appears only when at least five of the seven big holiday calendars we compared print the same date, and the card tells you how many did. That count is as close to verification as a folk date gets.
Because a day only appears here if it passed one of those two tests, and most do not. The six calendars counted in the table above list between 117 and 273 dated entries each, and not one of them links a source for a single date. Filling a month with twenty entries is easy when nothing has to be checked. This calendar carries 86 days across the year, from six in January to eleven in November. That is the output of the rule rather than a target anyone set. It also leaves out month-long observances and most days of remembrance. A shorter list you can defend beats a longer one you cannot. Once the date is chosen the post itself is a different job, and the Instagram caption generator takes it from there.
Thirteen of the days here move, and none of them is typed in. The calendar computes each one from its published rule the moment you choose a year: the third Monday in January, the last Monday in May, the fourth Thursday in November. Black Friday, Small Business Saturday, Cyber Monday and GivingTuesday are computed as offsets from Thanksgiving. Easter is computed from the ecclesiastical rule. Three of them change month between the years on offer. Cyber Monday falls on 30 November in 2026. GivingTuesday falls on 1 December in 2026 and 30 November in 2027. Easter falls on 5 April in 2026 and 28 March in 2027. A stored list gets those wrong quietly.
Fewer than the calendar offers. A month here carries between six and eleven dated days, and almost nobody has that many posts to spare on other people's themes. Pick the two or three where you have something specific to say and let the rest pass. Choosing a niche marks the days that suit your kind of business, which makes the shortlist easier to draw. Timing is a separate question from date, and this page never gives you a time of day on purpose. The best time to post on Instagram tool covers that question. If the format is the part you get stuck on, the Instagram story ideas generator goes deeper.
No. Every date, label and angle line is worked out in your browser from a fixed dataset and a set of published rules, so the same month, year and niche always produce the same output. Nothing is sent to a server, nothing is generated on the fly, and none of your choices leave the page. The angle lines are a small set of written prompts assigned to each day when the tool was built, not text written by a model. That is deliberate for a calendar. A date is a fact, and a fact should not be improvised on each load. You can also read the whole dataset by switching months.
The moving dates need no annual update, because they are computed rather than stored, which is the real advantage of building it this way. The year selector currently offers 2026, 2027 and 2028. What does need an annual pass is the fixed list: bodies add and retire observances, and a day that had no owner last year can acquire one. The last pass was August 2026, and the updated date on this page shows it, so you can see how fresh the list is rather than trusting a header. The tool is free, needs no signup, and nothing sits behind an email address.
Both failed the rule. Blue Monday, the supposed third Monday in January, has no designating body, so it needed agreement across the calendars we compare and did not get it. One of the six prints it on Tuesday 20 January 2026, which is not a Monday. National Coffee Day is stranger. Not one of the six gives it a date at all, though two mention it in prose as something to post about. The day that does appear on all of them, 1 October, is International Coffee Day, which the International Coffee Organization runs, and that one is on this calendar with the organisation named. Two similar names, one owner.
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