title: Set system time format via adb shell
body: <p>I am trying to write a simple form utility to configure an attached android device. One of the actions I need to perform is to change the system timezone, time and time format.</p>
  
  <p>I am setting the system timezone via:</p>
  
  <pre><code>adb shell setprop persist.sys.timezone "America/Chicago"
  </code></pre>
  
  <p>Changing the time via</p>
  
  <pre><code>adb shell date -s YYYYMMDD.HHmmss
  </code></pre>
  
  <p>Now I need to set the 12/24 hour format of the device, but I don't know how to do this. It needs to be done via adb. Any help is appreciated, thanks!</p>