fn:day-from-dateTime - XPath XQuery Reference

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XPath/XQuery day-from-dateTime function

Summary

Returns the day component of an xs:dateTime.

Signature

fn:day-from-dateTime(

$arg as xs:dateTime?

) as xs:integer?

Properties

This function is deterministic, context-independent, and focus-independent.

Rules

If $arg is the empty sequence, the function returns the empty sequence.

Otherwise, the function returns an xs:integer between 1 and 31, both inclusive, representing the day component in the local value of $arg.

The expression fn:day-from-dateTime(xs:dateTime("1999-05-31T13:20:00-05:00")) returns 31.

The expression fn:day-from-dateTime(xs:dateTime("1999-12-31T20:00:00-05:00")) returns 31.

The expression fn:day-from-dateTime(fn:adjust-dateTime-to-timezone(xs:dateTime("1999-12-31T19:20:00-05:00"), xs:dayTimeDuration("PT0S"))) returns 1.