Mlclock is the best clock for the mlvwm window manager.

HOW TO USE

   Copy /usr/X11R6/share/mlclock/mlclockrc file to your home
   directory as ".mlclockrc" 
   (or specifyed name in Imakefile).

   Then, add following line into .mlvwmrc.

       Swallow "MLClock" Action Exec "mlclock" exec mlclock

   that's all.

WWW: http://www2u.biglobe.ne.jp/~y-miyata/mlvwm.html