this page is existing permalink for the following question:

Why do you prefer year-month-day over month-day-year when doing literally anything?

It was originally used when i had folders and files, and i didn't trust the "sort by date" feature, and i instead used a name prefix of YYYY-MM-DD, with leading zeros, which would cause "sort by name" to rather sort by the date instead. I use dashes since slashes aren't allowed in pathnames. For the website, I don't actually use this system anymore but rather have the date put in a separate file alongside the display name. Since i used that for file naming i decided to use it for everything else too.