In jwm the panel clock shows the time in AM and PM. I tried to set it to 24 hour format, however, could only do it by going into /usr/bin/jwm and did some fiddling there. Now it shows the 24 hour format yet still the PM and AM, that is 15:15 PM. Have not yet figured how to get rid of AM/PM
There should be an easier way AFAIC or isn't there one. Is this really hard-wired?