JAVA - Parsing date with Joda with time zone

I have two timestamps which describe the same instant of time in two different formats.

2010-10-03 18:58:07 and 2010-10-03T16:58:07.000+02:00.

I parse the timestamps with two different date formatters with Joda. In the end i want to have two DateTime objects that are equal in terms of being the same instant of time.

The DateFormatter offers several methods to control time zones and locales but i couldn't get it to work.

This is the code that i would like to work:

    final String date1 = "2010-10-03 18:58:07"; // Europe/Berlin local time
    final DateTimeFormatter formatter1 = DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss");
    final DateTime dateTime1 = formatter1.parseDateTime(date1);

    final String date2 = "2010-10-03T16:58:07.000+02:00"; // Europe/Berlin local time with time zone
    final DateTimeFormatter formatter2 = DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
    final DateTime dateTime2 = formatter2.parseDateTime(date2);

    Assert.assertTrue(dateTime1.isEqual(dateTime2));

Thanks in advance if somebody can help me!

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Question by (1/7/2011 11:24:44 AM)

Answer

If your default time zome is Europe/Berlin, 2010-10-03 18:58:07 corresponds to 2010-10-03T16:58:07.000+00:00.

You probably misunderstand the time zone field in the string representation. Your time stamp 2010-10-03T16:58:07.000+02:00 means that "it is 16:58:07 in a time zone with a +2 hour offset from GMT), or in an other wording "it is now 16:58:07 in Berlin". I assume that you expected it to mean that it's 16:58:07 GMT?

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Related Topics  java  datetime  date  timezone  jodatime
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