Serializing and deserializing dates loses precision about msgpack-cli HOT 4 CLOSED

// Custom Serializer. Note you must implement it to be stateless object.
public class NetDateTimeSerializer : MessagePackSerializer<DateTime>
{
    protected override void PackToCore(Packer packer, DateTime value)
    {
          // Note: if you want to preserve timezone info, you should use DateTimeOffset.
          packer.Pack(value.ToUniversalTime().Tick);
    }

    protected override DateTime UnpackFromCore(Unpacker unpacker)
    {
        return new DateTime((long)packer.Data.Value);
    }
}
...
// In your application initialization code
// Create your global context which will be used in all serialization (or, you can overwrite SerializationContext.Default).
s_context = new SerializationContext();
// Register your custom serializer.
s_context.Serializers.Register(new NetDateTimeSerializer());
...
// In application code
// Create serializer with above context which knows NetDateTimeSerializer.
var serializer = MessagePackSerializer.Create<Foo>(s_context);

// Let's test custom serializer.
var expected = new DateTime(1234L); // This has micro-seconds values.
using(var buffer = new MemoryStream())
{
    serializer.Pack(expected, buffer);
    buffer.Position = 0;
    var actual = serializer.Unpack(buffer);

    // Are they equal?
    Assert.AreEqual(expected, actual);
}