How to make JSON.NET deserialize to Microsoft Date Time?

Using JsonSerializerSettings, I am able to consume/serialize the Microsoft DateTime format, but DateTimes seem continue to deserialize using the ISO 8601 standard

JsonSerializerSettings = new JsonSerializerSettings { DateFormatHandling = DateFormatHandling.MicrosoftDateFormat }

I'm trying to write a custom JsonConverter to handle the deserialization but am having trouble with the escape characters.

writer.WriteValue ("\\/Date(" + x + ")\\/");

is writing as


anyone ever tackled this before? Been searching around wayy to much without finding a good solution


You shouldn't need a custom converter here. Using the DateFormatHandling = DateFormatHandling.MicrosoftDateFormat setting is the correct approach and works both for serialization and deserialization. Make sure you are passing the settings to the SerializeObject and DeserializeObject methods as appropriate. If you don't pass the settings, it will use the default format, which is ISO 8601.

using System; using Newtonsoft.Json; public class Program { public static void Main() { Foo foo = new Foo { Date = new DateTime(2015,10,29,19,0,0) }; JsonSerializerSettings settings = new JsonSerializerSettings { DateFormatHandling = DateFormatHandling.MicrosoftDateFormat, Formatting = Formatting.Indented }; string json = JsonConvert.SerializeObject(foo, settings); Console.WriteLine(json); foo = JsonConvert.DeserializeObject<Foo>(json, settings); Console.WriteLine(foo.Date.ToString()); } } class Foo { public DateTime Date { get; set; } }


{ "Date": "\/Date(1446145200000+0000)\/" } 10/29/2015 7:00:00 PM

Fiddle: https://dotnetfiddle.net/hnJIO4


It looks like your input date has been serialized as ticks. In your custom converter can you deserialize the JSON value and use it to initialize a DateTime object?


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