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Editorial Team
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Asked: 2026-06-14T15:58:28+00:00

Why does the program printout the same output/time with different TimeZone ? Calendar cal

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Why does the program printout the same output/time with different TimeZone?

    Calendar cal = GregorianCalendar.getInstance();
    TimeZone timeZone_1 = TimeZone.getTimeZone("Asia/Rangoon");
    cal.setTimeZone(timeZone_1);
    System.out.println(cal.getTime());

    TimeZone timeZone_2 = TimeZone.getTimeZone("Asia/Tokyo");
    cal.setTimeZone(timeZone_2);
    System.out.println(cal.getTime());

Example Output : 

Thu Nov 22 09:00:33 MMT 2012
Thu Nov 22 09:00:33 MMT 2012

My Expected Output is: 

Thu Nov 22 09:00:33 MMT 2012
Thu Nov 22 11:30:33 MMT 2012
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1 Answer

  1. Editorial Team

    Your code is fine, it’s only the debug output that’s wrong (misleading). cal.getTime() returns Date object, which is independent from time zone. But Date.toString() always prints this date with systems’ time zone. Date.toString() is so counterintuitive (it displays calendar time with system time zone while it barely stores number of millliseconds) that it should have been banned/deprecated.

    To have accurate logging use SimpleDateFormat or call various Calendar.get*() methods instead:

    System.out.println(cal.get(Calendar.HOUR_OF_DAY));
System.out.println(cal.get(Calendar.MINUTE));

    And as always with any questions regarding Java date/time handling, consider jodatime…

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