diff --git a/src/Z.Core/System.DateTimeOffset/DateTimeOffset.SetTime.cs b/src/Z.Core/System.DateTimeOffset/DateTimeOffset.SetTime.cs
index 6c9e2b4a..d00ad204 100644
--- a/src/Z.Core/System.DateTimeOffset/DateTimeOffset.SetTime.cs
+++ b/src/Z.Core/System.DateTimeOffset/DateTimeOffset.SetTime.cs
@@ -55,6 +55,6 @@ public static DateTimeOffset SetTime(this DateTimeOffset current, int hour, int
     /// <returns>A DateTimeOffset.</returns>
     public static DateTimeOffset SetTime(this DateTimeOffset current, int hour, int minute, int second, int millisecond)
     {
-        return new DateTime(current.Year, current.Month, current.Day, hour, minute, second, millisecond);
+        return new DateTimeOffset(current.Year, current.Month, current.Day, hour, minute, second, millisecond, current.Offset);
     }
 }
\ No newline at end of file
diff --git a/test/Z.Core.Test/System.DateTimeOffset/DateTimeOffset.SetTime.cs b/test/Z.Core.Test/System.DateTimeOffset/DateTimeOffset.SetTime.cs
index 5831fbe8..0d6aa353 100644
--- a/test/Z.Core.Test/System.DateTimeOffset/DateTimeOffset.SetTime.cs
+++ b/test/Z.Core.Test/System.DateTimeOffset/DateTimeOffset.SetTime.cs
@@ -16,13 +16,15 @@ public class System_DateTimeOffset_SetTime
         public void SetTime()
         {
             // Type
-            DateTimeOffset @thisToday = DateTimeOffset.Now;
+            DateTimeOffset @thisToday = DateTimeOffset.UtcNow;
 
             // Exemples
             DateTimeOffset result = @thisToday.SetTime(15); // Set hours to 15
 
             // Unit Test
             Assert.AreEqual(15, result.Hour);
+
+            Assert.AreEqual(thisToday.Offset, result.Offset);
         }
     }
 }
\ No newline at end of file