[GTALUG] An anomaly with the `date` command

[Ron / BCLUG]

Colin McGregor via talk wrote on 2024-01-30 14:14:

> For calendar oddities try typing the following into a BASH terminal :
> 
> cal 9 1752
> 
> The seemingly odd result will be correct for what is now Halifax, Nova
> Scotia, but incorrect for what is now Quebec City, Quebec. Anyone know
> why?


https://en.wikipedia.org/wiki/Old_Style_1752

 > dropped 3–13 September to transition to the Gregorian calendar.[1]