5 observances land on 23 March. We have not found a recorded founder for any of them.
| Observance | Declared by | First year | Source |
|---|---|---|---|
| Day of Hungarian-Polish Friendship Hungary and Poland | no record | — | — |
| Day of the Sea Bolivia | no record | — | — |
| Pakistan Day Pakistan | no record | — | — |
| Promised Messiah Day Ahmadiyya | no record | — | — |
| World Meteorological Day | no record | — | — |
"No record" means we could not find one, not that none exists. Where a founder is named, the source is named with it.
Who decides these? Nobody official. A brand, a trade body, a government, or one person with a website. Most are simply asserted and then repeated until they look official. Here, whoever names it first.
Nobody has ever named 23 March here. The next one is Tuesday, 23 March 2027.
Tuesday, 23 March 2027 has no name yet. It costs $2.