C# Find the last Day of Week of the month

This blog gives the complete code of finding the Last Day of Week of the Month for example, Thursday, Saturday, and so.

The idea of this post from forum, https://stackoverflow.com/questions/24245523/getting-the-first-and-last-day-of-a-month-using-a-given-datetime-object, is good but it only has the code snippet. I bet they are half or more than half of the reader after reading it, and yet to know how to code. Again what is var there in the post?

To complete shows in the code below. You will get actually the day.

static void Main(string[] args)


  DateTime dte = GetLastDayOfMonth();

  Console.WriteLine(“The last day of this moeth is {0}”, dte.DayOfWeek);


public static DateTime GetLastDayOfMonth()


  DateTime date = DateTime.Now;

  DateTime firstDayOfMonth = new DateTime(date.Year, date.Month, 1);

  var lastDayOfMonth = firstDayOfMonth.AddMonths(1).AddDays(-1);

  return lastDayOfMonth;


About chanmingman

Since March 2011 Microsoft Live Spaces migrated to Wordpress (http://www.pcworld.com/article/206455/Microsoft_Live_Spaces_Moves_to_WordPress_An_FAQ.html) till now, I have is over 1 million viewers. This blog is about more than 50% telling you how to resolve error messages, especial for Microsoft products. The blog also has a lot of guidance teaching you how to get stated certain Microsoft technologies. The blog also uses as a help to keep my memory. The blog is never meant to give people consulting services or silver bullet solutions. It is a contribution to the community. Thanks for your support over the years. Ming Man is Microsoft MVP since year 2006. He is a software development manager for a multinational company. With 25 years of experience in the IT field, he has developed system using Clipper, COBOL, VB5, VB6, VB.NET, Java and C #. He has been using Visual Studio (.NET) since the Beta back in year 2000. He and the team have developed many projects using .NET platform such as SCM, and HR based applications. He is familiar with the N-Tier design of business application and is also an expert with database experience in MS SQL, Oracle and AS 400.
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