if ( o instanceof Calendar )
if ( o == null ) { return null; } else if ( o instanceof DateTimeDataElement ) { return ( (DateTimeDataElement) o ).getValueAsCDateTime( ); } else if ( o instanceof Calendar )
	public static final CDateTime asDateTime( Object o )	{		if ( o instanceof Calendar )		{			return new CDateTime( (Calendar) o );		}		else if ( o instanceof Date )		{			return new CDateTime( (Date) o );		}		return (CDateTime) o;	}