Why is colon displayed as "date separator" in Metadata panel editing?

[fisketjon]

When i click to edit colons are used to separate ymd values, and to display in the submenu
You cannot view this attachment.
You cannot view this attachment.

. is used to display dates
You cannot view this attachment.

Is this something that can be changed in a setting?

[Mario]

As explained in the help, IMatch formats date and time in the MD panel, for variables and other users based on your locale (aka Windows date and time format settings).

When you click into a date & time field to edit, IMatch uses the official standardized ISO date and time metadata format 

YYYY:MM:DD hh:mm:ss{time zone +/- hh:mm or Z}

[fisketjon]

I always thought the ISO format as YYYY-MM-DD hh:mm:ss with dash'es to separate datae parts and colons to separate time parts

https://www.iso.org/iso-8601-date-and-time-format.html

[Mario]

IMatch uses the ISO format used by the XMP standard and ExifTool. This works very well since 2015.

[fisketjon]

https://developer.adobe.com/xmp/docs/XMPNamespaces/XMPDataTypes/

I've been working as a programmer since 1982, but I can't remember seeing an ISO date format with colons in the date part. That's why I asked. It's not a big deal, a lot of characters would have worked as well, but I think it's incorrect to say it's an ISO format.