Timezone Adjustment in Oracle SOA 10g

Using XPath 2.0  function

fn:adjust-dateTime-to-timezone()

it becomes easy to move the incoming dateTime from one timezone to another timezone.


Since Oracle SOA suite 10g does not support XPath 2.0 one of  the ways to achieve this is by string manipulation and formatting the result.  Another option is to write a custom function.


The inbound date is in PDT and we would like to convert this to UTC.  The XSL looks like