Newtonsoft.Json.JsonTextReader.ReadAsDateTimeOffset C# (CSharp) Method

        public override DateTimeOffset? ReadAsDateTimeOffset()
        {
            return (DateTimeOffset?)ReadStringValue(ReadType.ReadAsDateTimeOffset);
        }
#endif

        public static DateTimeOffset? ParseDateTimeOffset(JToken value)
        {
            var jValue = value as JValue;
            if (jValue != null)
            {
                if (jValue.Value == null)
                    return null;

                if (jValue.Value is DateTimeOffset)
                    return jValue.Value<DateTimeOffset>();
            }

            var rawValue = value.AsString();

            if (string.IsNullOrWhiteSpace(rawValue))
                return null;

            rawValue = rawValue.Replace("NeoDate", "Date");

            if (!DateRegex.IsMatch(rawValue))
            {
                DateTimeOffset parsed;
                if (!DateTimeOffset.TryParse(rawValue, out parsed))
                    return null;
            }

            var text = string.Format("{{\"a\":\"{0}\"}}", rawValue);
            var reader = new JsonTextReader(new StringReader(text)) {DateParseHandling = DateParseHandling.DateTimeOffset};
            reader.Read(); // JsonToken.StartObject
            reader.Read(); // JsonToken.PropertyName
            return reader.ReadAsDateTimeOffset();
        }