date_part

The date function used to find the numeric value for a part of a date or datetime value. It takes two arguments: the date to be evaluated and the unit of time to find from it (one of "timezone", "timezonehour", "timezoneminute", "year", "decade", "century", "quarter", "month", "week", "day", "dayofweek", "dayofyear", "hour", "minute", "second", or "millisecond").

Returns: integer

PREFIX : <https://ddw-doccorp.linked.data.world/d/sparql-function-sample-queries/>
PREFIX fn: <http://data.world/function/functions#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>

SELECT (fn:date_part("day", "2001-01-12"^^xsd:date) as ?date_part)
{
}