Every month of 2026, distilled to the observances brands actually post about — UN international days, awareness days, and hashtag holidays — each with its established hashtag and one practical post idea. Floating dates are resolved to their real 2026 date, because that is exactly where copied calendars go stale.
No 500-entry data dump: 15–25 well-established dates per month, verified before publishing.
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12 of 12 months published so far — the rest are being researched and land here as they are verified.
Including Dry January, Veganuary, New Year’s Day…
Last verified June 2026
February 202624 observances + hashtagsIncluding Black History Month (US), American Heart Month, Groundhog Day…
Last verified June 2026
March 202623 observances + hashtagsIncluding Women’s History Month, World Compliment Day, World Wildlife Day…
Last verified June 2026
April 202623 observances + hashtagsIncluding Stress Awareness Month, National Poetry Month, April Fools’ Day…
Last verified June 2026
May 202623 observances + hashtagsIncluding Mental Health Awareness Month, National Bike Month, National Space Day…
Last verified June 2026
June 202624 observances + hashtagsIncluding Pride Month, Men’s Health Month, World Milk Day…
Last verified June 2026
July 202622 observances + hashtagsIncluding National Ice Cream Month, Plastic Free July, Disability Pride Month…
Last verified June 2026
August 202623 observances + hashtagsIncluding National Wellness Month, Black Business Month, World Wide Web Day…
Last verified June 2026
September 202624 observances + hashtagsIncluding Childhood Cancer Awareness Month, National Suicide Prevention Month, National Hispanic Heritage Month…
Last verified June 2026
October 202622 observances + hashtagsIncluding Breast Cancer Awareness Month, Cybersecurity Awareness Month, International Coffee Day…
Last verified June 2026
November 202625 observances + hashtagsIncluding Movember, No-Shave November, National Gratitude Month…
Last verified June 2026
December 202623 observances + hashtagsIncluding World AIDS Day, GivingTuesday, International Day of Persons with Disabilities…
Last verified June 2026
Hashtag holidays are calendar glue, not a strategy. The brands that get engagement from them pick a handful of dates per month that genuinely fit their voice, write one good post for each, and schedule the batch in a single sitting — then spend the rest of the month on content only they could make.
Use each month page the same way: skim the list, shortlist four to six dates, steal the post idea or write a better one, and put the whole batch on a calendar. The solemn remembrance days are flagged too — knowing when not to run promotions is half the value of planning ahead.
Shortlist the dates, write the posts once, and schedule the whole month to all 11 platforms from one calendar — done in an afternoon, published all month.
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