BRR/BlackRockReportFunction/Helpers/TimeOnlyConverter.cs

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json;

namespace BlackRockReportFunction.Helpers
{
    public class TimeOnlyConverter : JsonConverter<TimeOnly>
    {
        private const string Format = "hh:mm:ss";

        public override TimeOnly ReadJson(JsonReader reader,
            Type objectType,
            TimeOnly existingValue,
            bool hasExistingValue,
            JsonSerializer serializer) =>
            TimeOnly.ParseExact((string)reader.Value, Format, CultureInfo.InvariantCulture);

        public override void WriteJson(JsonWriter writer, TimeOnly value, JsonSerializer serializer) =>
            writer.WriteValue(value.ToString(Format, CultureInfo.InvariantCulture));
    }
}