Yes, at one time when I played with jmc I went into /usr/bin/jwm and was able to
change to the 24 h time. It was then I think Uelsk who pointed out to me the right thing
is doing in /usr/etc/system.jwmrc and how. Still awkward, however, doable. That would
be a pointer in the opening text of Nightflyers VL-Light versions, how to change the clock
settings, --guess might be too much.