[Plugin: All-in-One Calendar] How to change the time display format ?

Hi, I’m using the plugin for a painter, to display her next exhibitions.

But I don’t like the way the start time is displayed : “xx h xx min”, I would like it to be displayed like this : “xx:xx” which is much better, as we are french and using the 24h time format.

I can’t find where I can change that.

Here is the website I’m working on, as you can see, the widget under the menu has this kind of display : https://slworks-united.com/dom/