From what I can see, the Modern Date Picker control is still unable to display a short date in anything other than US format, as in 02/29/2024. Most of the world, according to Wikipedia (https://en.wikipedia.org/wiki/Date_format_by_country), would write that date in the format 29/02/2024. So most of the world is unable to use the Modern Date Picker without some ugly workaround, such as overlaying a text label.
I've been waiting patiently for this support to be added, thinking that it would happen shortly after the control's introduction. But still, many months on, there's no sign of it, and no mention of it on a recent blog post: https://powerapps.microsoft.com/en-us/blog/recap-of-modern-controls-evolution-in-2023-and-a-glimpse-into-2024-innovations/.
To me, it would make sense to use the locale set by the browser (see https://www.localeplanet.com/support/browser.html) or the device (if using a mobile app) as the default format, and allow this to be overridden by the maker if they want to do that.
Am I missing something? Perhaps there's some way of persuading the Modern Date Picker to use UK format that I haven't found. (entering "dd/MM/yyyy" into the "Format" property would make sense to me, but that doesn't work)
Anyone got any insights on this?