JSON Helper Class

public static class JSONHelper
{
    public static string ToJSON(this object obj)
    {
        TimeZoneInfo tzi = TimeZoneInfo.Local;

        JavaScriptSerializer serializer = new JavaScriptSerializer();
        return serializer.Serialize(obj.SpecifyDateTimeKind());
    }


    public static string ToJSON(this object obj, int recursionDepth)
    {
        JavaScriptSerializer serializer = new JavaScriptSerializer();
        serializer.RecursionLimit = recursionDepth;
        return serializer.Serialize(obj);
    }

    public static T FromJSON<T>(string str)
    {
        T obj;

        JavaScriptSerializer serializer = new JavaScriptSerializer();
        obj = serializer.Deserialize<T>(str).SpecifyDateTimeKind();

        return obj;
    }

    /// <summary>
    /// All the datetime properties will be set to a DateTimeKind.UTC using SpecifyKind method.
    /// This will correct the datetime value when serialized/deserialized using JavascriptSerializer.
    /// This also takes care of nullable DateTime properties.
    /// </summary>
    /// <param name="obj">Any Object</param>
    /// <returns></returns>
    public static T SpecifyDateTimeKind<T>(this T obj)
    {
        Type t = obj.GetType();

        // Loop through the properties.
        PropertyInfo[] props = t.GetProperties();
        for (int i = 0; i < props.Length; i++)
        {
            PropertyInfo p = props[i];
            // If a property is DateTime or DateTime?, set DateTimeKind to DateTimeKind.Utc.
            if (p.PropertyType == typeof(DateTime))
            {
                DateTime date = (DateTime)p.GetValue(obj, null);
                date = DateTime.SpecifyKind(date, DateTimeKind.Utc);
                p.SetValue(obj, date, null);
            }
            // Same check for nullable DateTime.
            else if (p.PropertyType == typeof(Nullable<DateTime>))
            {
                DateTime? date = (DateTime?)p.GetValue(obj, null);
                DateTime? newDate = DateTime.SpecifyKind(date.Value, DateTimeKind.Utc);
                p.SetValue(obj, newDate, null);
            }
        }

        return obj;
    }
}