proc draw hour min sec . .
   # dial
   color 333
   move 50 50
   circle 45
   color 797
   circle 44
   color 333
   for i range0 60
      a = i * 6
      move 50 + sin a * 40 50 + cos a * 40
      circle 0.25
   .
   for i range0 12
      a = i * 30
      move 50 + sin a * 40 50 + cos a * 40
      circle 1
   .
   # hour
   linewidth 2
   color 000
   a = (hour * 60 + min) / 2
   move 50 50
   line 50 + sin a * 32 50 + cos a * 32
   # min
   linewidth 1.5
   a = (sec + min * 60) / 10
   move 50 50
   line 50 + sin a * 40 50 + cos a * 40
   # sec
   linewidth 1
   color 700
   a = sec * 6
   move 50 50
   line 50 + sin a * 40 50 + cos a * 40
.
on timer
   if t <> floor systime
      t = floor systime
      h$ = timestr t
      sec = number substr h$ 18 2
      min = number substr h$ 15 2
      hour = number substr h$ 12 2
      if hour > 12
         hour -= 12
      .
      draw hour min sec
   .
   timer 0.1
.
timer 0