<Query Kind="Statements" />

var startDate = DateTime.Now.Date;
var endOfMonth = startDate.AddMonths(1).AddDays(-1).Date;
endOfMonth.Dump();
endOfMonth.Subtract(startDate).TotalDays.Dump();
endOfMonth = endOfMonth.AddMonths(1).AddDays(-1).Date;
endOfMonth.Dump();
endOfMonth.Subtract(startDate).TotalDays.Dump();
endOfMonth = endOfMonth.AddMonths(1).AddDays(-1).Date;
endOfMonth.Dump();
endOfMonth.Subtract(startDate).TotalDays.Dump();
$"{endOfMonth:d}".Dump();
endOfMonth.ToShortDateString().Dump();
$"{endOfMonth}".Dump();
endOfMonth.ToString().Dump();