In the FSFT, When you bring up the list of Notifications from the little bell icon, The dating structure is inconsistent and sometimes incomprehensible. The following example seems to be using the Canadian standard of DD/MM/YYYY:
More like the rest-of-the-world-style haha. But yeah, they should make it all the same D MMM YYYY
I just took a look through my "Notifications" ...
In your "List" (ie. Image), where the DIFFERENCE is between 27 Dec 2020 and 3/1/2021
In my "List", the DIFFERENCE is between 28 Dec 2020 and 5/1/2021
That said ...
The "Change" to that the 'Date' Format, appears to have been made in a Release/Update [ie. either, the 'Weekly' Sunday night/Monday morning ('Mountain' Time); or, an 'In-Line' one] to the "System", around the New Year.
I would suggest that, such a Release/Update, was more than likely, an "In-Line" one.
Obviously, the "Coding"/"Programming" (for that "Part"), was NOT extensively "Tested"; certainly, NOT "Tested" in "Focus" Group - who may have identified such an inconsistency.
We are just lucky, that the 'Date' Format for the "Change", is STILL the "International" 'Date' Format [ie. either, (what it was) DD Mmm YYYY; or, (what it is) DD/MM/YYYY].
I am surprised, that our American 'Cousins', are NOT 'jumping up and down' about it.