About WhatNationalDay

What you will find here

Every entry says what the day is, when it is observed, where it came from where that is known, and some simple ways to take part. You can browse by month, open any date to see everything observed on it, orsearch and filter the full list by subject.

How dates work

Some holidays always fall on the same date. Others follow a rule, such as the third Friday of a month or the Tuesday of the first full week of May, so they move from year to year. We store the rule rather than a single date, so a floating holiday shows the right date for the year you are looking at. Dates are shown for the US Eastern timezone.

A note on "national" days

Most national days are not official. Governments proclaim only a few of them. The rest are started by organizations, brands, communities and enthusiasts, and a day can be marked by more than one group on different dates. Where a day has a clear origin we say so; where it does not, we do not invent one.

How the entries are written

Entries are written with the help of AI tools, and we check dates and facts against published sources. We do not treat that as a guarantee. Holiday information changes, sources disagree, and mistakes happen, so if something is wrong, please tell us and we will correct it.

How the site is paid for

WhatNationalDay is free to read. It earns money from display advertising and from Amazon affiliate links on holiday pages, which earn a commission on qualifying purchases at no extra cost to you. Links and ads never change what an entry says. The privacy policy explains what that involves.

Get in touch

Corrections, missing holidays and questions are all welcome at support@whatnationalday.com. More on the contact page.