Greetings:
The attached patch is for normalizing timezones to zulu time.
While implementing it as prescribed for adding durations to date/times is
fine, you must reverse the timezone sign (+|-).
A negative timezone indicates time behind zulu and must be added to reach
zulu time and the opposite for positive timezones.
See http://www.w3.org/TR/xmlschema-2/#date for a more detailed description.
Enjoy.
--larry
Lawrence J. McCay III
Probaris Technologies, Inc.
718 Arch Street, Suite 300 South
Philadelphia, PA 19106
phone 215-238-0510
cell 856-296-8391
fax 215-238-0577
[EMAIL PROTECTED]
www.probaris.com
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Index: DateTimeBase.java
===================================================================
RCS file:
/cvs/castor/castor/src/main/org/exolab/castor/types/DateTimeBase.java,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 DateTimeBase.java
--- DateTimeBase.java 3 Mar 2003 07:08:55 -0000 1.1.1.1
+++ DateTimeBase.java 16 Dec 2004 16:50:44 -0000
@@ -42,6 +42,7 @@
*
* $Id: DateTimeBase.java,v 1.1.1.1 2003/03/03 07:08:55 kvisco Exp $
* Date Author Changes
+ * 2004-12-16-05:00 Larry McCay Fixed normalization of timezones [EMAIL
PROTECTED]
* 08/30/2001 Arnaud Blandin added to Calendar() (patch from Sébastien
Stormacq [EMAIL PROTECTED])
* 05/29/2001 Arnaud Blandin Added order methods
* 05/22/2001 Arnaud Blandin Created
@@ -730,7 +731,13 @@
Duration temp = new Duration();
temp.setHour(_zoneHour);
temp.setMinute(_zoneMinute);
- if (isZoneNegative())
+
+ // Timezone being negative is a reflection of the time being the
specified amount of time
+ // behind zulu time. This amount of time must be added in order to
normalize to zulu time.
+ // A positive timezone indicates the exact opposite and must be
subtracted from the date/time in order
+ // get to zulu time.
+ // see: http://www.w3.org/TR/xmlschema-2/#date
+ if (!isZoneNegative())
temp.setNegative();
this.addDuration(temp);
//reset the zone
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