The new properties in v1.4 are welcome and very useful. The property types (text, list, number, checkbox, date, date & time) are well thought-out.
However, not all users of Obsidian (even if they are from the U.S.) use the U.S. date notation of mm/dd/yyyy. In fact, for the majority of the world, putting the month ahead of the day makes no logical sense at all.
Some countries use slashes, others use dashes, others use periods. Right now, Obsidian’s property dates only use slashes, which might suggest the mm/dd format, but then again the UK (and other countries) also uses slashes, except it flips the two to dd/mm.
I know many people (including myself) who put the year first, followed by the month and the day, with or without puncutation. It allows for much easier sorting of files and folders in the digital age, it even has an ISO code (8601), and I guess you could say it’s the way of the developer.
** I propose adding a date format setting to the property date and date&time types.**
You could utilize the existing setting in Settings > Daily notes for this. It would probably make sense to move the setting to a more general location though.
If you add this little tweak, YYMMDD users like myself, and presumably our British friends and the rest of the world, will thank you for the reduced cognitive overhead in parsing the dates of their notes.