JavaScript: The Definitive Guide

24.34. Date.getUTCDate( ): return the day-of-the-month field of a Date (universal time)

ECMAScript v1

24.34.1. Synopsis

date.getUTCDate( )

24.34.1.1. Returns

The day of the month (a value between 1 and 31) that results when date is expressed in universal time.