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https://issues.apache.org/jira/browse/JENA-508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15320441#comment-15320441
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ASF GitHub Bot commented on JENA-508:
-------------------------------------
Github user afs commented on the issue:
https://github.com/apache/jena/pull/148
It's a good thing it's summer where I am (British Summer Time)!
My reading of https://www.w3.org/TR/xpath-functions-3/#timezone.functions
is that conversions where there is no provided timezone use local time,
including daylight savings time.
In the tests `TimeZone.getDefault().getRawOffset()` returns the offset
without regard for the local daylight savings time.
Also allowing for timezones which are negative offsets, I came up with:
```
private String getDynamicDurationString(){
int tzOffset = TimeZone.getDefault().getOffset(new
Date().getTime())/(1000*60) ;
String x = "PT"+Math.abs(tzOffset)+"M";
if ( tzOffset < 0 )
x = "-"+x ;
return x ;
}
```
`XSDFuncOp.adjustDatetimeToTimezone` also needs this.
> Add support for XPath 3 Functions
> ---------------------------------
>
> Key: JENA-508
> URL: https://issues.apache.org/jira/browse/JENA-508
> Project: Apache Jena
> Issue Type: Improvement
> Components: ARQ
> Reporter: Rob Vesse
> Assignee: Alessandro Seganti
> Labels: gsoc, gsoc2015
>
> XPath 3 is now a Candidate Recommendation -
> http://www.w3.org/TR/xpath-functions-30/
> It contains many new functions and operators (particularly in the
> mathematical space) which we should consider adding into future versions of
> ARQ.
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