[BUG] Days in leap year are not correctly retrieved from the controller

src/AXSharp.connectors/src/AXSharp.Connector.S71500.WebAPI/BuiltInWrappers/WebApiDate.cs

@@ -106,7 +106,7 @@ private DateOnly GetFromBinary(long value)
 
             case eTargetProjectPlatform.SIMATICAX:
                 var valAx = value / 100;
-                return valAx.AdjustForLeapDate();
+                return valAx.GetDateOnly();
 
             default:
                 var valdef = value / 100;

src/AXSharp.connectors/src/AXSharp.Connector.S71500.WebAPI/BuiltInWrappers/WebApiDateTime.cs

@@ -138,7 +138,7 @@ private DateTime GetFromBinary(string value)
     private DateTime GetFromBinary(long val)
     {
         var dt = val / 100;
-        return dt.AdjustForLeapDateTime(); // DateTime.FromBinary(dt).AddYears(1969);
+        return dt.ToUtcDateTime(); // DateTime.FromBinary(dt).AddYears(1969);
     }
 
     private string GetFromDate(DateTime dateTime)

src/AXSharp.connectors/src/AXSharp.Connector.S71500.WebAPI/BuiltInWrappers/WebApiLDate.cs

@@ -84,7 +84,7 @@ private DateOnly GetFromBinary(string value)
     private DateOnly GetFromBinary(long value)
     {
         var val = value / 100;
-        return val.AdjustForLeapDate(); // DateOnly.FromDateTime(DateTime.FromBinary(val).AddYears(1969));
+        return val.GetDateOnly(); // DateOnly.FromDateTime(DateTime.FromBinary(val).AddYears(1969));
     }
 
     private string GetFromDate(DateOnly date)

src/AXSharp.connectors/src/AXSharp.Connector.S71500.WebAPI/BuiltInWrappers/WebApiLDateTime.cs

@@ -84,7 +84,7 @@ private DateTime GetFromBinary(string value)
     private DateTime GetFromBinary(long val)
     {
         var dt = val / 100;
-        return dt.AdjustForLeapDateTime(); // DateTime.FromBinary(dt).AddYears(1969);
+        return dt.ToUtcDateTime(); // DateTime.FromBinary(dt).AddYears(1969);
     }
 
 

src/AXSharp.connectors/src/AXSharp.Connector.S71500.WebAPI/WebApiConnectorExtensions.cs

@@ -57,17 +57,19 @@ public static ConnectorAdapter CreateWebApi(this ConnectorAdapterBuilder adapter
         { Parameters = new object[] { ipAddress, userName, password, customServerCertHandler, ignoreSslErrors, platform, dbName } };
     }
 
-    public static DateOnly AdjustForLeapDate(this long value)
-    {        
-        var noLeap = DateOnly.FromDateTime(DateTime.FromBinary(value).AddYears(1969));
-        var leapDays = DateTime.IsLeapYear(noLeap.Year) && ((noLeap.Month == 2 && noLeap.Day == 29) || noLeap.Month >= 3) ? -1 : 0;
-        return noLeap.AddDays(leapDays);
+    public static DateOnly GetDateOnly(this long value)
+    {
+        // 1 tick = 100 ns
+        // Use DateTimeKind.Utc for correct interpretation
+        var dateTime = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)
+                           .AddTicks(value);
+
+        // Return the date portion in UTC
+        return DateOnly.FromDateTime(dateTime.ToUniversalTime());
     }
 
-    public static DateTime AdjustForLeapDateTime(this long value)
+    public static DateTime ToUtcDateTime(this long value)
     {
-        var noLeap = DateTime.FromBinary(value).AddYears(1969);
-        var leapDays = DateTime.IsLeapYear(noLeap.Year) && ((noLeap.Month == 2 && noLeap.Day == 29) || noLeap.Month >= 3) ? -1 : 0;
-        return noLeap.AddDays(leapDays);
+        return new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddTicks(value);
     }
 }

src/AXSharp.connectors/tests/AXSharp.Connector.Sax.WebAPITests/WebApiConnector/WebApiPrimitiveTests.cs

@@ -186,16 +186,16 @@ public WebApiDateTests(ITestOutputHelper output) : base(output)
         [Fact]
         public virtual async void should_synchron_write_leap_value_check_leap()
         {
-            var testDate = new DateOnly(2025, 1, 1);
-            for (int i = 0; i < 100; i++)
+            var testDate = new DateOnly(2024, 1, 1);
+            for (int i = 0; i < 365*5; i++)
             {
                 testDate = testDate.AddDays(1);
                 TestConnector.TestApiConnector.ClearPeriodicReadSet();
                 await webApiPrimitive!.SetAsync(testDate);
                 var actual = await webApiPrimitive.GetAsync();
                 if(testDate != actual)
                     Output.WriteLine($"Expected: {testDate} - Actual: {actual} {testDate == actual}"); 
-               // Assert.Equal(testDate, actual);
+                Assert.Equal(testDate, actual);
             }            
         }
 

src/AXSharp.connectors/tests/ax-test-project/ax-test-project.sln

@@ -0,0 +1,24 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.2.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ax_test_project", "ix\ax_test_project.csproj", "{C821E27A-DD87-A1A7-0B15-842E89FDA2A2}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{C821E27A-DD87-A1A7-0B15-842E89FDA2A2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C821E27A-DD87-A1A7-0B15-842E89FDA2A2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C821E27A-DD87-A1A7-0B15-842E89FDA2A2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C821E27A-DD87-A1A7-0B15-842E89FDA2A2}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {550C4796-5273-4560-BB73-CED0252EDF8C}
+	EndGlobalSection
+EndGlobal