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Article #7889

Re: Problem with time zones ...

#7889
From: John McGrath TeamB
Date: Fri, 11 May 2001 03:40
46 lines
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On 9 May 2001 23:27:30 -0700, Edwin G๏ฟฝnthner wrote:

> On my machine, it gives me the correct time,
> on the other machine, it gives me correct time + one hour.

It sounds like the time configuration on the other machine is somehow 
screwed up.  Java date/time values work correctly for me on all of the 
machines I work with.

> I assume that Java ignores this one flag ("change according to 
> daylight saving times automatically") that you can setup in 
> Windows Date settings.

There really should not be any change in the time values when daylight 
savings time (or summer time) kicks in.  Java stores time values using 
an offset in milliseconds since the beginning of the "epoch", which I 
believe was 1-Jan-1970, 0:00:00 UT.  When daylight savings time is in 
effect, the values should be formatted differently, but the actual 
values do not change.

Try running this program on the different machines and post the 
results.  That should give some idea what is wrong.  

   import java.util.Date;
   import java.text.DateFormat;

   public class Time {
      public static void main( String[] args ) {
         Date date = new Date();
         DateFormat format = DateFormat.getDateTimeInstance(
            DateFormat.FULL, DateFormat.FULL );
         System.out.println( date.getTime() + " = "
            + format.format( date ) );
      }
   }

BTW, what operating system(s) are you running this on?

-- 
Regards,

John McGrath [TeamB]

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From: John McGrath  [TeamB] <ng-b@JPMcGrath.net>
Newsgroups: borland.public.jbuilder.java.language
Subject: Re: Problem with time zones ...
Date: Thu, 10 May 2001 23:40:26 -0400
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