Get the quarter number for the DateTime

   
 
//Octavalent Extension Methods
//http://sdfasdf.codeplex.com/
//Library of extension methods for .Net create by Octavalent (www.octavalent.nl)
using System;

    public static class DateTimeExtensions
    {

        public static int Quarter(this DateTime dateTime)
        {
            return Convert.ToInt16((dateTime.Month - 1)/3) + 1;
        }
   }