diff --git a/src/OrchardCore/OrchardCore.Abstractions/Json/JOptions.cs b/src/OrchardCore/OrchardCore.Abstractions/Json/JOptions.cs
index 727e2feb931..cde64d5a524 100644
--- a/src/OrchardCore/OrchardCore.Abstractions/Json/JOptions.cs
+++ b/src/OrchardCore/OrchardCore.Abstractions/Json/JOptions.cs
@@ -36,8 +36,6 @@ static JOptions()
         Default = new JsonSerializerOptions(Base);
         Default.Converters.Add(new DynamicJsonConverter());
         Default.Converters.Add(new PathStringJsonConverter());
-        Default.Converters.Add(new TimeSpanJsonConverter());
-        Default.Converters.Add(new DateTimeJsonConverter());
 
         Indented = new JsonSerializerOptions(Default)
         {
diff --git a/src/OrchardCore/OrchardCore.Abstractions/Json/Serialization/DateTimeJsonConverter.cs b/src/OrchardCore/OrchardCore.Abstractions/Json/Serialization/DateTimeJsonConverter.cs
deleted file mode 100644
index 9c2915aa2dc..00000000000
--- a/src/OrchardCore/OrchardCore.Abstractions/Json/Serialization/DateTimeJsonConverter.cs
+++ /dev/null
@@ -1,27 +0,0 @@
-using System;
-using System.Globalization;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace OrchardCore.Json.Serialization;
-
-public class DateTimeJsonConverter : JsonConverter<DateTime>
-{
-    public override DateTime Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-    {
-        if (typeToConvert != typeof(DateTime))
-        {
-            throw new ArgumentException("Unexpected type to convert.", nameof(typeToConvert));
-        }
-
-        if (!reader.TryGetDateTime(out DateTime value) && DateTime.TryParse(reader.GetString()!, out value))
-        {
-            return value;
-        }
-
-        return value;
-    }
-
-    public override void Write(Utf8JsonWriter writer, DateTime value, JsonSerializerOptions options)
-        => writer.WriteStringValue(value.ToString("yyyy-MM-ddTHH:mm:ssZ", CultureInfo.InvariantCulture));
-}
diff --git a/src/OrchardCore/OrchardCore.Abstractions/Json/Serialization/TimeSpanJsonConverter.cs b/src/OrchardCore/OrchardCore.Abstractions/Json/Serialization/TimeSpanJsonConverter.cs
deleted file mode 100644
index f7811abb64a..00000000000
--- a/src/OrchardCore/OrchardCore.Abstractions/Json/Serialization/TimeSpanJsonConverter.cs
+++ /dev/null
@@ -1,28 +0,0 @@
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace OrchardCore.Json.Serialization;
-
-public class TimeSpanJsonConverter : JsonConverter<TimeSpan>
-{
-    public override TimeSpan Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-    {
-        if (reader.TokenType != JsonTokenType.String)
-        {
-            throw new JsonException($"Unexpected token parsing TimeSpan. Expected a string, got '{reader.TokenType}'.");
-        }
-
-        var stringValue = reader.GetString();
-        
-        if (TimeSpan.TryParse(stringValue, out var timeSpan))
-        {
-            return timeSpan;
-        }
-
-        throw new JsonException($"Unable to convert '{stringValue}' to TimeSpan.");
-    }
-
-    public override void Write(Utf8JsonWriter writer, TimeSpan value, JsonSerializerOptions options)
-        => writer.WriteStringValue(value.ToString());
-}
diff --git a/test/OrchardCore.Tests/Data/ContentItemTests.cs b/test/OrchardCore.Tests/Data/ContentItemTests.cs
index 91494ff1605..8d61337943c 100644
--- a/test/OrchardCore.Tests/Data/ContentItemTests.cs
+++ b/test/OrchardCore.Tests/Data/ContentItemTests.cs
@@ -1,58 +1,12 @@
 using System.Text.Json;
 using System.Text.Json.Dynamic;
 using System.Text.Json.Nodes;
-using OrchardCore.ContentFields.Fields;
 using OrchardCore.ContentManagement;
-using OrchardCore.Json.Serialization;
 
 namespace OrchardCore.Tests.Data
 {
     public class ContentItemTests
     {
-        /// <summary>
-        /// To validate <see cref="DateTimeJsonConverter"/>
-        /// and <seealso cref="TimeSpanJsonConverter"/>
-        /// </summary>
-        [Fact]
-        public void JsonNode_WhenParseCalled_ConvertShortTimeFormatToTimeField()
-        {
-            // Arrange
-            var jsonStr = """
-             {
-                "TimeFieldTest": {
-                    "Value": "13:05"
-                },
-                "DateTimeFieldTest": {
-                    "Value": "2024-5-31 13:05"
-                },
-                "TimezoneDateTimeFieldTest": {
-                    "Value": "2022-12-13T21:02:18.399-05:00"
-                },
-                "DateFieldTest": {
-                    "Value": "2024-5-31"
-                }
-            }
-            """;
-
-            // Act
-            var jobject = JsonNode.Parse(jsonStr);
-            var timeField = jobject.SelectNode("TimeFieldTest").ToObject<TimeField>();
-            var dateField = jobject.SelectNode("DateFieldTest").ToObject<DateField>();
-            var dateTimeField = jobject.SelectNode("DateTimeFieldTest").ToObject<DateTimeField>();
-            var timezoneDateTimeFieldTest = jobject.SelectNode("TimezoneDateTimeFieldTest").ToObject<DateTimeField>();
-
-            // Assert
-            Assert.Equal("13:05:00", timeField.Value.Value.ToString());
-            Assert.Equal("2024-05-31", dateField.Value.Value.ToString("yyyy-MM-dd"));
-            Assert.Equal("2024-05-31 13:05", dateTimeField.Value.Value.ToString("yyyy-MM-dd HH:mm"));
-            Assert.Equal("13:05:00", JObject.FromObject(timeField).SelectNode("Value").ToString());
-            Assert.Equal("2024-05-31T00:00:00Z", JObject.FromObject(dateField).SelectNode("Value").ToString());
-            Assert.Equal("2024-05-31T13:05:00Z", JObject.FromObject(dateTimeField).SelectNode("Value").ToString());
-
-            var utcTime = TimeZoneInfo.ConvertTimeToUtc(timezoneDateTimeFieldTest.Value.Value);
-            Assert.Equal("2022-12-14 02:02:18", utcTime.ToString("yyyy-MM-dd HH:mm:ss"));
-        }
-
         [Fact]
         public void ShouldSerializeContent()
         {
@@ -209,7 +163,7 @@ public void ContentShouldStoreDateTimeFields()
 
             var json = JConvert.SerializeObject(contentItem);
 
-            Assert.Contains(@"""MyPart"":{""Text"":""test"",""myField"":{""Value"":""2024-01-01T10:42:00Z""}}", json);
+            Assert.Contains(@"""MyPart"":{""Text"":""test"",""myField"":{""Value"":""2024-01-01T10:42:00""}}", json);
         }
 
         [Fact]