ASP.Net - Conditions within a public class - asp.net

Question

I have this public class below and I want to include a condition which placed it inside and it doesn't work. Any suggestions?
public SummaryDates GetSummaryDates()
{
SummaryDates result = new SummaryDates();
var getDay = 3;
DateTime now = DateTime.UtcNow.Date;
var getMonth = 0;
var getQuarter = 0;
var quarterNow = now.AddMonths(3 * getQuarter);
var quarterNumber = Math.Ceiling(quarterNow.Month / 3m);
var quarterLabel2 = 0;
var quarterLabel1 = 0;
var quarterLabelA = 0;
var quarterLabelB = 0;
result.summaryDates = new SummaryDates
{
startOfQuarter2 = now,
endOfQuarter2 = now,
endOfQuarter2Plus1Day = now,
endOfQuarter1Plus1Day = now,
startOfQuarter1 = now,
endOfQuarter1 = now,
startOfQuarterA = now,
startOfQuarterB = now,
endOfQuarterA = now,
endOfQuarterB = now,
endOfQuarterAPlus1Day = now,
endOfQuarterBPlus1Day = now,
if (quarterNumber == 4)
{
startOfQuarter2 = new DateTime(getSummaryDates.quarter2Year, 10, 01);
endOfQuarter2 = new DateTime(getSummaryDates.quarter2Year, 12, 31);
endOfQuarter2Plus1Day = getSummaryDates.endOfQuarter2.AddDays(1);
quarterLabel2 = Convert.ToInt16(Math.Ceiling(getSummaryDates.endOfQuarter2.Month / 3m));
}
return result;
}
}
I've placed the conditions inside. It doesn't work.