diff --git a/src/inApp/classes/IterableInAppMessage.ts b/src/inApp/classes/IterableInAppMessage.ts
index c77b08e63..eda8e0d7c 100644
--- a/src/inApp/classes/IterableInAppMessage.ts
+++ b/src/inApp/classes/IterableInAppMessage.ts
@@ -175,16 +175,8 @@ export class IterableInAppMessage {
     const campaignId = dict.campaignId;
     const trigger = IterableInAppTrigger.fromDict(dict.trigger);
 
-    let createdAt = dict.createdAt;
-    if (createdAt) {
-      const dateObject = new Date(0);
-      createdAt = dateObject.setUTCMilliseconds(createdAt);
-    }
-    let expiresAt = dict.expiresAt;
-    if (expiresAt) {
-      const dateObject = new Date(0);
-      expiresAt = dateObject.setUTCMilliseconds(expiresAt);
-    }
+    const createdAt = dict.createdAt ? new Date(dict.createdAt) : undefined;
+    const expiresAt = dict.expiresAt ? new Date(dict.expiresAt) : undefined;
     const saveToInbox = IterableUtil.readBoolean(dict, 'saveToInbox');
     const inboxMetadataDict = dict.inboxMetadata;
     let inboxMetadata: IterableInboxMetadata | undefined;
@@ -202,10 +194,6 @@ export class IterableInAppMessage {
       messageId,
       campaignId,
       trigger,
-      // MOB-10426: Speak to the team about `IterableInAppMessage` requiring a date
-      // object, but being passed a number in this case
-      // eslint-disable-next-line @typescript-eslint/ban-ts-comment
-      //  @ts-ignore
       createdAt,
       expiresAt,
       saveToInbox,
diff --git a/src/inbox/classes/IterableInboxDataModel.ts b/src/inbox/classes/IterableInboxDataModel.ts
index 4b81d5b22..0f3a4527d 100644
--- a/src/inbox/classes/IterableInboxDataModel.ts
+++ b/src/inbox/classes/IterableInboxDataModel.ts
@@ -211,15 +211,7 @@ export class IterableInboxDataModel {
       return '';
     }
 
-    let createdAt;
-
-    if (typeof message.createdAt === 'string') {
-      createdAt = new Date(parseInt(message.createdAt, 10));
-    } else {
-      createdAt = new Date(message.createdAt);
-    }
-
-    const defaultDateString = `${createdAt.toLocaleDateString()} at ${createdAt.toLocaleTimeString()}`;
+    const defaultDateString = `${message.createdAt.toLocaleDateString()} at ${message.createdAt.toLocaleTimeString()}`;
 
     return defaultDateString;
   }