Trixie, mate-desktop, how can I get rid of that comma in the date?

[Ottavio Caruso <ottavio2006-usenet2012@yahoo.com>]

I use mate as my DM. After upgrading to Trixie, I see an additional 
comma in the bottom-right corner of my mate-panel as in here:
https://i.ibb.co/DP3tS7j4/comma.png

between the day and the hour.

I am pretty sure it wasn't there.

Any way that I can remove that or reset the setting(s) for the time display?


--
Ottavio Caruso

A: Because it messes up the order in which people normally read text.
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