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POIssue is converting seconds to date/time in Java
 

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  1. POIssue is converting seconds to date/time in Java
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    <p>I want to convert the seconds from DEC 31ST 1969 7 PM to date/time in the following java code.</p> <pre><code>package sampProp; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.Date; import java.util.StringTokenizer; import java.util.TimeZone; public class sample { public static void main(String args[]) { //Here 1373605580 is the number os secs from DEC 31ST 1969 7 PM long millisecs = (long)(1373605580) *1000; DateFormat df = new SimpleDateFormat("MM/dd/yyyy_HH:mm:ss a"); df.setTimeZone(TimeZone.getTimeZone("EST")); Date d1 = new Date(millisecs); String formattedDate = df.format(d1); System.out.println("Formatted date is "+formattedDate); } } </code></pre> <p>I'm running the code on AIX server.</p> <p>My development server gives the value <code>07/12/2013_00:06:20</code> which is the correct one but my production server gives <code>07/12/2013_01:06:20</code> which is not correct.</p> <p>How is this possible. And how can I correct this. </p> <p>My Development server's java-version output is: </p> <pre><code>java version "1.5.0" Java(TM) 2 Runtime Environment, Standard Edition (build pap64dev-20071008 (SR6)) IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 AIX ppc64-64 j9vmap6423-20071007 (JIT enabled) J9VM - 20071004_14218_BHdSMr JIT - 20070820_1846ifx1_r8 GC - 200708_10) JCL - 20071008 </code></pre> <p>And my production server's java-version output is:</p> <pre><code>java version "1.5.0" Java(TM) 2 Runtime Environment, Standard Edition (build pap64dev-20080315 (SR7)) IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 AIX ppc64-64 j9vmap6423-20080315 (JIT enabled) J9VM - 20080314_17962_BHdSMr JIT - 20080130_0718ifx2_r8 GC - 200802_08) JCL - 20080314 </code></pre>
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    1. COWhat JDK or JRE build do you have on each of the two machines? Also, you know that using the three-letter timezone codes is deprecated, right?
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      1. POIssue is converting seconds to date/time in Java
      1. USDawood ibn Kareem
    2. COWhat is your use case for this? Can you use Joda-Time instead? http://www.joda.org/joda-time/
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    3. COYou can't always just recommend Joda-Time as a fix-all when nothing seems to be wrong... I can't see anything wrong with this code so it would be interesting to figure out the actual problem.
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      1. POIssue is converting seconds to date/time in Java
      1. USSebastiaan van den Broek
 

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