Your right, I looked within the wrong module. Now that I looked at it, the problem is slighty different.
In the lastest event module the time the time is displayed just the way I want it (24hr format). For an overview of events by categorie, I've created a menu (type: Jevents - view by category). In this view I can't choose a date/time format, so I expect this uses the JEvents configuation-settings. Here I've choosen the date-format according to the language file. I've got two in folder components/com_jevents/language:
nl-NL.com_jevents.ini (this one I copied manually).
In both files the time-format is %H:%M, the 24hr format. However, stil the 12hr format is used.
I use the default template and created a new layout in <template>/html/com_jevents/default/assets. Here I copied the original CSS and image-files and adjusted it for my own needs. In the style-sheets there's no way to set date/time formats.
What do I do wrong and how can I change the time-format to 24hr?
Thanks in advance.