Why is today Veterans Day, and not Veteran’s Day or Veterans’ Day? (I would think Veterans’ Day is actually the best choice.) OK grammarians, enlighten me.
It is the Day to appreciate the work of veterans and to remember those veterans who fell. It was originally Armistice Day, but as more wars happened after the War to End All Wars, the switch was made to Veterans Day.
In 1918 in the “eleventh hour of the eleventh day of the eleventh month.” The armistice to end WWI was signed.
Why there is no apostrophe, as per Wikipedia:
Presidents’ Day
Valentine’s Day
St. Patrick’s Day
but also,
Columbus Day, not “Columbus’s Day”.
Groundhog Day, not “Groundhogs’ Day” or “Groundhog’s Day”.
The VA says Veterans Day is for celebrating veterans, but not belonging to veterans… I’m not sure if all the other holidays follow that convention. Main and Massachusetts even have a “Patriot’s Day”.
Basically the same reason it isn’t Columbus’ day or Presidents’ day
But it is “Presidents’ Day”. Well, officially it is “Washington’s Birthday”. But even when referring to it by its unofficial name, The US OPM calls it “Presidents’ Day”. Frequently Asked Questions - OPM.gov
Damn, I checked my calendar first too. I guess they misprinted it.
Actually, the Armistice was signed at around 5:45 that morning, but it went into effect 5 hours later. To make it easy to communicate, they rounded the time off to the nearest hour.
As for the OP, originally, the name was All Veterans Day. It was subsequently shortened.
This answer makes the most sense to me.
To be a bit more acurate, it was originally proposed as All Veterans Day. But the law that changed it just replaced the word ‘Armistice’ with ‘Veterans’.
Don’t try to ruin this, it is a wonderful solemn way to remember the day. Facts will only get in the way. 
Hey, this is GQ. Facts is what we live on here.
Agreed, and I honestly never knew it wasn’t signed in the 11th hour.
Was Pershing really the one that coined the phrase?
The holiday is not a day that “belongs” to one veteran or multiple veterans, which is what an apostrophe implies. It’s a day for honoring all veterans — so no apostrophe needed.