title: Best way to update Android widget exactly at time?
body: <p>I have an application with widget, and I don't need to update it periodically, besides one time exactly at 0:00:00.</p>
  
  <p>So, I set <strong><code>android:updatePeriodMillis="0"</code></strong> to save device battery, but what is a best practice to do one update per day?</p>