DataContractJsonSerializer converting to UTC overflow problem when serializing time types

Problem description

Like the next entity class, which contains a non-empty time type attribute, the default is the minimum time for C #, and when you use DataContractJsonSerializer to serialize the class object to JSON, Throw exception message: System.Runtime.Serialization.SerializationException: "When converting to UTC, greater than datetime.maxvalue or less than datetime.minvalue DateTime values cannot be serialized as JSON. ”。
Entity class

public class Post{    public string Id { get; set; }    public string Title { get; set; }    public string Content { get; set; }    public DateTime CreateTime { get; set; }}

Serialization classes

public class DataContractProvider{    public string Serialize<T>(T value)    {        var serializer = GetJsonSerializer<T>();        using (var stream = new MemoryStream())        {            serializer.WriteObject(stream, value);            return Encoding.Default.GetString(stream.ToArray());        }    }    public T Deserialize<T>(string json)    {        var serializer = GetJsonSerializer<T>();        var bytes = Encoding.Default.GetBytes(json);        using (var stream = new MemoryStream(bytes))        {            return (T)serializer.ReadObject(stream);        }    }    private DataContractJsonSerializer GetJsonSerializer<T>()    {        return new DataContractJsonSerializer(typeof(T));    }}

Solutions

Here are a few ways to try it:
1. To change datetime to a nullable type DateTime, you can serialize successfully, but in fact the time type of the property is non-null and therefore cannot be resolved.
2. When constructing DataContractJsonSerializer, add serialization settings Datacontractjsonserializersettings and set the time format to serialize successfully. Settings are as follows:

private DataContractJsonSerializer GetJsonSerializer<T>(){    var settings = new DataContractJsonSerializerSettings    {        DateTimeFormat = new DateTimeFormat("yyyy-MM-dd HH:mm:ss")    };    return new DataContractJsonSerializer(typeof(T), settings);}

DataContractJsonSerializer converting to UTC overflow problem when serializing time types