How to get the First, second and third Monday of the month b

I want to get the first, second and third Monday of the Month between two dates. I can get the first Monday of the month but not between two day. Below is my code. Any help will be appreciated.

class Program
{
public class BusinessWeekDays
{
public DateTime Tuesday;
public DateTime Monday;
}
static void Main(string[] args)
{
var StartDate = DateTime.Parse("04/25/2019");
var SeriesEndDate = DateTime.Parse("09/30/2019");
for (int mth = 1; mth <= 12; mth++)
{
DateTime dt = new DateTime(2010, mth, 1);
while (dt.DayOfWeek != DayOfWeek.Monday)
{
dt = dt.AddDays(1);
}
Console.WriteLine(dt.ToLongDateString());
}
Console.ReadLine();
//for (var i = StartDate; i < SeriesEndDate; i = i.AddMonths(Monthly))
//{
// months.Add(new BusinessWeekDays { Tuesday = dt, Monday = dt.AddDays(7) });
// Console.WriteLine(months);
//}
}

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Jeeva Subburaj7y ago
Accepted answer
Check this answer fron stackoverflow.

https://stackoverflow.com/questions/6140018/how-to-calculate-2nd-friday-of-month-in-c-sharp
public static DateTime NthOf(this DateTime CurDate, int Occurrence , DayOfWeek Day)
{
    var fday = new DateTime(CurDate.Year, CurDate.Month, 1);

    var fOc = fday.DayOfWeek == Day ? fday : fday.AddDays(Day - fday.DayOfWeek);
    // CurDate = 2011.10.1 Occurance = 1, Day = Friday >> 2011.09.30 FIX.
    if (fOc.Month < CurDate.Month) Occurrence = Occurrence+1;
    return fOc.AddDays(7 * (Occurrence - 1));
}
for (int i = 1; i < 13; i++)
{
     Console.WriteLine(new DateTime(2011, i,1).NthOf(2, DayOfWeek.Friday));
}
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