diff --git a/lib/__internal/utils.js b/lib/__internal/utils.js
index <HASH>..<HASH> 100644
--- a/lib/__internal/utils.js
+++ b/lib/__internal/utils.js
@@ -165,7 +165,7 @@ const serializeVariable = ({ key, typedValue }) => {
   }
 
   if (type === "date" && value instanceof Date) {
-    value = value.toISOString().replace(/Z$/, "UTC+00:00");
+    value = value.toISOString().replace(/Z$/, "+0000");
   }
 
   return { ...typedValue, value, type };
diff --git a/lib/__internal/utils.test.js b/lib/__internal/utils.test.js
index <HASH>..<HASH> 100644
--- a/lib/__internal/utils.test.js
+++ b/lib/__internal/utils.test.js
@@ -267,7 +267,7 @@ describe("utils", () => {
     it("value should be converted to proper formatted string if type is date and value is an instance of date", () => {
       // given
       let dateStr = "2013-06-30T21:04:22.000+0200";
-      let formattedDate = "2013-06-30T19:04:22.000UTC+00:00";
+      let formattedDate = "2013-06-30T19:04:22.000+0000";
       let dateObj = new Date(dateStr);
       let typedValue = {
         value: dateObj,
fix(serialization): adjust Date format

related to CAM-<I>