diff --git a/src/main/java/com/MTAPizza/Sympoll/groupmanagementservice/dto/response/GroupResponse.java b/src/main/java/com/MTAPizza/Sympoll/groupmanagementservice/dto/response/GroupResponse.java
index 9503e0a..b764e5a 100644
--- a/src/main/java/com/MTAPizza/Sympoll/groupmanagementservice/dto/response/GroupResponse.java
+++ b/src/main/java/com/MTAPizza/Sympoll/groupmanagementservice/dto/response/GroupResponse.java
@@ -1,5 +1,7 @@
 package com.MTAPizza.Sympoll.groupmanagementservice.dto.response;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
+
 import java.time.LocalDateTime;
 import java.util.List;
 import java.util.UUID;
@@ -9,6 +11,7 @@ public record GroupResponse (
     String groupName,
     String description,
     UUID creatorId,
+    @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd'T'HH:mm:ss'Z'")
     LocalDateTime timeCreated,
     List<MemberResponse> membersList
 ) {}