FunctX XSLT Function Library > Dates, Times and Durations > Month >

functx:first-day-of-month

The first day of the month of a date

Description

The functx:first-day-of-month function returns the date representing the first day of the month of $date as an xs:date value.

The $date argument must be castable to xs:date, meaning that it must have the type xs:date or xs:dateTime, or be an xs:string or untyped value of the form YYYY-MM-DD.

Arguments and Return Type

XSLT Function Declaration

<xsl:function name="functx:first-day-of-month" as="xs:date?"
              xmlns:functx="http://www.functx.com">
  <xsl:param name="date" as="xs:anyAtomicType?"/>

  <xsl:sequence select="
   functx:date(year-from-date(xs:date($date)),
            month-from-date(xs:date($date)),
            1)
 "/>

</xsl:function>

Examples

functx:first-day-of-month(
   xs:date('2004-01-23'))

2004-01-01

functx:first-day-of-month(
     xs:dateTime('2004-01-23T12:00:13'))

2004-01-01

functx:first-day-of-month('2004-03-23')

2004-03-01

Depends On

See Also

History