Hello everyone,
            I want to use this function to convert a local time(in this case Spain) to GMT/UTC time.My call to the function is the following:

<xsl:value-of select="adjust-dateTime-to-timezone(xs:dateTime($date))"/>

If for example date equals 2006-07-24T07:44:00 the function returns
2006-07-24T07:44:00+02:00.This is still my local time but with the difference from the GMT/UTC time(2 hours).

What I want is the GMT/UTC time(local - 2 hours)(ie 2006-07-24T05:44:00+02:00).

I know that I can simply substract 2 hours to the local time but I would have to ckeck too many things.


Is there anyway to do this?

Thank you very much for the help.


Tomi.

adjust--to-timezone() with no parameters, when the input is a time-without-timezone, says "treat this input time as representing a time in timezone IT", where IT is the implicit timezone taken from the evaluation context (which in practice means from the computer's system clock settings). I think you want to treat it as a time in timezone Z, which you can achieve using

adjust--to-timezone($in, xs:dayTimeDuration('PT0H'))

You can then convert this to timezone +02:00, or to IT, by a further call on the function:

adjust--to-timezone($temp, xs:dayTimeDuration('PT2H'))

or simply

adjust--to-timezone($temp)

where $temp is the result of the first call.


Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference

Dear Mr Kay,
           Is there any way to obtain the current difference in hours between a local time and GMT time?(ie asking the computer's system clock).

This difference is not always the same because of the daylight savings time.

In spanish case:
Standard Time = GMT+1
Summer Time = GMT+2

I really appreciate your help.

Tomi

The implicit-timezone() function gives you this difference. For example, I would expect that in your environment implicit-timezone returns the duration PT2H. If you want to convert this to an integer number of hours, divide by xs:dayTimeDuration('PT1H').

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference