FunctX XSLT Function Library > Dates, Times and Durations > Time Zones >

fn:adjust-dateTime-to-timezone

Adjusts a dateTime to a specific timezone, or no timezone

Description

The fn:adjust-dateTime-to-timezone function behaves differently depending on whether the $arg date value already has a time zone, and on the value of the time zone provided.

The $timezone argument is expressed as an xs:dayTimeDuration, for example -PT5H for US Eastern Standard Time. If $timezone is the empty sequence, it is assumed that the desired result is a date value that is in no time zone. If $timezone is omitted from the function call, it is assumed to be the implicit time zone.

If $arg does not already have a time zone, its date part stays the same, but it is now associated with the specified time zone. If $arg already has a time zone, its value is adjusted to that time zone.

This description is © Copyright 2007, Priscilla Walmsley. It is excerpted from the book XQuery by Priscilla Walmsley, O'Reilly, 2007. For a complete explanation of this function, please refer to Appendix A of the book.

Arguments and Return Type

Examples

adjust-dateTime-to-timezone(
   xs:dateTime('2006-02-15T17:00:00'),
   xs:dayTimeDuration('-PT7H'))

2006-02-15T17:00:00-07:00

adjust-dateTime-to-timezone(
   xs:dateTime('2006-02-15T17:00:00-03:00'),
   xs:dayTimeDuration('-PT7H'))

2006-02-15T13:00:00-07:00

adjust-dateTime-to-timezone(
   xs:dateTime('2006-02-15T17:00:00'),
   ())

2006-02-15T17:00:00

adjust-dateTime-to-timezone(
   xs:dateTime('2006-02-15T17:00:00-03:00'),
   ())

2006-02-15T17:00:00

adjust-dateTime-to-timezone(
   xs:dateTime('2006-02-15T01:00:00-03:00'),
   xs:dayTimeDuration('-PT7H'))

2006-02-14T21:00:00-07:00

adjust-dateTime-to-timezone(
   xs:dateTime('2006-02-15T17:00:00'))

2006-02-15T17:00:00-05:00

adjust-dateTime-to-timezone(
   xs:dateTime('2006-02-15T17:00:00-03:00'))

2006-02-15T15:00:00-05:00

See Also

History