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day-from-dateTime

Returns the day portion of a date/time.

fn:day-from-dateTime(arg)

The following table describes the argument for this command:

Argument	Required/ Optional	Description
arg	Required	The dateTime value from which the day component is to be extracted. The dateTime-value is of type xs:dateTime or is an empty sequence.

Returns the day portion from an xs:dateTime value in its localized form, as an integer between 1 and 31 inclusive.

If dateTime-value is an empty sequence, the returned value is an empty sequence.

The following expression returns 15 as the result:

fn:day-from-dateTime(xs:dateTime('2023-07-15T18:00:00'))

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