Changing TimeZone for Calendar object doesnt change its time

Hy, I have a Calendar object with I have set with a Date but I I want from this calendar with the Date set, set other timezone for this calendar and get the corresponding time(always gettting the correct time if is in daylightsavings) but I get the same time.
Calendar calendario = Calendar.getInstance
calendario.setTime(new Date());
System.out.println(calendario.getTime()); *// for example I get the 14:12:25 hours for GMT+01:00*
calendario.setTimeZone(TimeZone.getTimeZone("GMT+02:00")); *//change time zone using GMT*
System.out.println(calendario.getTime()); *// I get the same hour: 14:12:25*
Why? How to do it using GMT format?
Thanks
Edited by: user13162080 on 13-sep-2011 14:31
Edited by: user13162080 on 13-sep-2011 14:48

user13162080 wrote:
Ok, thanks. The last question, this changing of timezone and the hour I am getting, is respecting the timezone daylight saving?, I mean if the TimeZone I set is in daylight savings, I will get the correct hour according to this?What DrClap said.
However, I think you still may be under some misapprehension about time zones:
1. A Date does NOT have a timezone, even though it stores a date/time value.
2. Setting a Calendar's timezone does NOT change the time stored in the Calendar. You may even need to run its complete() or computeFields() method to have the timezone change reflected in all its fields (not sure).
3. As DrClap said, if you are using a DateFormat to display the Calendar, you need to set its* timezone in order to see what you want (for reason 2 above).
It's amazing to me that after 10 years this API still gives so many problems (and believe me, you're not the only one).
One thing you might also want to do is have a look at [url http://joda-time.sourceforge.net/]Joda Time. It's been around for a long time now, and so is quite mature; and is fully interchangeable with standard Java date/time classes. In fact, many of its ideas were under consideration for Java Version 7 as JSR-310, but were decided against (still not quite sure why, as in my view the current API is very poor).
Winston

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