using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(GetTimeSpan(DateTime.Now.AddMinutes(-6)));

    }

    public static string GetTimeSpan(DateTime postDate) {

        string stringy = string.Empty;

        TimeSpan diff = DateTime.Now.Subtract(postDate);

        double days = diff.Days;

        double hours = diff.Hours + days*24;

        double minutes = diff.Minutes + hours*60;

        if (minutes <= 1) {

            return "Just Now";

        }

        double years = Math.Floor(diff.TotalDays/365);

        if (years >= 1) {

            return string.Format("{0} year{1} ago", years, years >= 2 ? "s" : null);

        }

        double weeks = Math.Floor(diff.TotalDays/7);

        if (weeks >= 1) {

            double partOfWeek = days - weeks*7;

            if (partOfWeek > 0) {

                stringy = string.Format(", {0} day{1}", partOfWeek, partOfWeek > 1 ? "s" : null);

            }

            return string.Format("{0} week{1}{2} ago", weeks, weeks >= 2 ? "s" : null, stringy);

        }

        if (days >= 1) {

            double partOfDay = hours - days*24;

            if (partOfDay > 0) {

                stringy = string.Format(", {0} hour{1}", partOfDay, partOfDay > 1 ? "s" : null);

            }

            return string.Format("{0} day{1}{2} ago", days, days >= 2 ? "s" : null, stringy);

        }

        if (hours >= 1) {

            double partOfHour = minutes - hours*60;

            if (partOfHour > 0) {

                stringy = string.Format(", {0} minute{1}", partOfHour, partOfHour > 1 ? "s" : null);

            }

            return string.Format("{0} hour{1}{2} ago", hours, hours >= 2 ? "s" : null, stringy);

        }

​

        // Only condition left is minutes > 1

        return minutes.ToString("# minutes ago");

    }

}