How to obtain system time and update data from database automatically with an amount of time
<p>I'm a new Android dev and I'm currently developing an app which is to display ListView data from web database.</p>

<p>But what I want is to update the data based on system time.</p>

<p>Let's say right now displaying data from database:</p>

<ol>
<li>lalala</li>
<li>lololo</li>
<li>wewewe</li>
</ol>

<p>and I need to update these data automatically FROM the database every 24 hours so that the outcome will be:</p>

<ol>
<li>lilili</li>
<li>wowowo</li>
<li>popopo</li>
</ol>

<p>I've tried System.currentTimeMillis(), it does not return any values.</p>

<p>Any professional out there could help me out ?</p>

<p>Thanks in advance.</p>
