a 1.0 and Java Representation</li>
 </ul>
 
 <p>The default start instance is defined by <CODE>GregorianCalendar</CODE>'s use of the start of the epoch: i.e.,
 <CODE>Calendar.YEAR</CODE> = 1970,
 <CODE>Calendar.MONTH</CODE> = <CODE>Calendar.JANUARY</CODE>,
 <CODE>Calendar.DATE</CODE> = 1, etc.
 This is important as there are variations in the Gregorian Calendar,
 e.g. leap years have different days in the month = <CODE>Calendar.FEBRUARY</CODE>
 so the result of <A HREF="../../../javax/xml/datatype/Duration.