Github user afs commented on a diff in the pull request: https://github.com/apache/jena/pull/148#discussion_r66244619 --- Diff: jena-arq/src/main/java/org/apache/jena/sparql/expr/nodevalue/XSDFuncOp.java --- @@ -1554,4 +1551,55 @@ private static Duration valueCanonicalDuration(NodeValue nv) { // dur = ... return dur ; } + + public static NodeValue adjustDatetimeToTimezone(NodeValue nv1,NodeValue nv2){ + if(nv1 == null) + return null; + + if(!nv1.isDateTime() && !nv1.isDate() && !nv1.isTime()){ + throw new ExprEvalException("Not a valid date, datetime or time:"+nv1); + } + + XMLGregorianCalendar calValue = nv1.getDateTime(); + Boolean hasTz = calValue.getTimezone() != DatatypeConstants.FIELD_UNDEFINED; + int inputOffset = 0; + if(hasTz){ + inputOffset = calValue.getTimezone(); + } + + int tzOffset = TimeZone.getDefault().getRawOffset() / (1000*60); + if(nv2 != null){ --- End diff -- `int tzOffset = TimeZone.getDefault().getOffset(new Date().getTime())/(1000*60) ;` Ideally, don't set this with a call to `new Date()` until later -- see below.
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---