C# DateTime Formatter

public string GetFormattedDateTime(DateTime dt)
{
    // Returns DateTime like: Monday, January 1, 2012 12:00:00 AM
    string t, result, weekday, minute, second;
    int hour;

    if (dt.Hour < 12) t = "AM";
    else t = "PM";
    if (dt.Hour > 13) hour -= 12;
    weekday = Enum.GetName(typeof(System.DayOfWeek), dt.DayOfWeek;

    if (dt.Minute < 10) minute = String.Concat("0", dt.Minute.ToString());
    else minute = dt.Minute.ToString();
    if (dt.second < 10) second = String.Concat("0", dt.Second.ToString());
    else second = dt.Second.ToString();

    result = String.Concat(weekday, ", ", GetMonthName(dt.Month), " ", dt.Day.ToString(), ", ", dt.Year.ToString,
        " ", hour.ToString(), ":", minute, ":", second, " ", t);
}

public string GetMonthName(int month)
{
    if (month == 1) return "January";
    if (month == 2) return "February";
    if (month == 3) return "March";
    if (month == 4) return "April";
    if (month == 5) return "May";
    if (month == 6) return "June";
    if (month == 7) return "July";
    if (month == 8) return "August";
    if (month == 9) return "September";
    if (month == 10) return "October";
    if (month == 11) return "November";
    if (month == 12) return "December";
    return month.ToString();
}