Calendar does not work properly!!! Why? Please help...

Question

Hello everybody!
I'm getting problems with calendar and I don't know what to do...
I'm in Brazil, Sao Paulo and I instantiate the Calendar class like this:
Calendar cal = Calendar.getInstance();
System.out.println(cal.getTime());
when i do this the time that is shown is one hour ahead the current time here in Brazil... So I tried to take the time from my Operating System like this
Date t = new Date();
t.setTime(System.currentTimeMillis());
cal.setTime(t);
System.out.println(cal.getTime());
and... The same thing happens! What I know is that the summer time in Brazil has changed and I can't even take the time from my OS...
Please... It's causing inconsistencies in our Database... Does anybody know how to solve this?
Thanks a lot...

Answer 1

Run this and see what you get:
(I'm not formatting this code so that it will copy with line breaks)
import java.util.*;
public class TimezoneDefault {
public static void main(String[] args) {
int hoursToMillisec = 3600 * 1000;
TimeZone tz = TimeZone.getDefault();
System.out.println("Default time zone id: " + tz.getID());
System.out.println("Default time zone: " + tz.getDisplayName());
System.out.println("Offset from GMT: " + (double)tz.getRawOffset() / hoursToMillisec);
System.out.println((tz.useDaylightTime()) ? "uses DST": "no DST");
System.out.println("DST value: " + (double)tz.getDSTSavings() / hoursToMillisec);