Synopsis:
   set clock_24hour [on|off|toggle]

Description:
   When turned on, this setting causes the status bar clock to be shown
   in 24-hour format (military style).  When off, the clock will display
   "AM" or "PM" to designate the true time.  The clock is displayed in
   the %Z expando in the status bar.

See Also:
   set(4) clock, status_clock