How to get the Date time month start and End Date?

Question

How to get the start date and end date of month in different variable. I have tried this and I get the start date but unable to find the end date

DateTime startDate = new DateTime(DateTime.Now.Year, DateTime.Now.Month, 1).ToString("yyyy-MM-dd HH:mm:ss.fff");
DateTime  endDate = new DateTime(DateTime.Now.Year, DateTime.Now.Month, 1).AddDays(30).ToString("yyyy-MM-dd HH:mm:ss.fff");

This logic fails when month end date is 31 and 28 or 29. Your Help are surely appretiated.

Answer 1

You can calculate endDate like this:

DateTime endDate = startDate.AddMonths(1).AddDays(-1);

Answer 2

DateTime endDate = new DateTime(DateTime.Now.Year, DateTime.Now.Month, 1)
                       .AddMonths(1).AddDays(-1);