diff --git a/src/app/networkDiscovery/views/DiscoveriesList/DiscoveriesList.tsx b/src/app/networkDiscovery/views/DiscoveriesList/DiscoveriesList.tsx
index 3da80adfd54..9c4f3693524 100644
--- a/src/app/networkDiscovery/views/DiscoveriesList/DiscoveriesList.tsx
+++ b/src/app/networkDiscovery/views/DiscoveriesList/DiscoveriesList.tsx
@@ -25,6 +25,7 @@ import type { Discovery } from "@/app/store/discovery/types";
 import { DiscoveryMeta } from "@/app/store/discovery/types";
 import type { RootState } from "@/app/store/root/types";
 import { generateEmptyStateMsg, getTableStatus } from "@/app/utils";
+import { formatUtcTimestamp } from "@/app/utils/time";
 
 export enum Labels {
   DiscoveriesList = "Discoveries list",
@@ -78,7 +79,11 @@ const generateRows = (
           content: discovery.observer_hostname,
         },
         {
-          content: <div className="u-truncate">{discovery.last_seen}</div>,
+          content: (
+            <div className="u-truncate">
+              {formatUtcTimestamp(discovery.last_seen)}
+            </div>
+          ),
         },
         {
           content: (
diff --git a/src/app/store/discovery/types/base.ts b/src/app/store/discovery/types/base.ts
index b4ed8ba6450..da03cd8c6e8 100644
--- a/src/app/store/discovery/types/base.ts
+++ b/src/app/store/discovery/types/base.ts
@@ -1,5 +1,5 @@
 import type { APIError } from "@/app/base/types";
-import type { Model } from "@/app/store/types/model";
+import type { Model, UtcTimestamp } from "@/app/store/types/model";
 import type { GenericState } from "@/app/store/types/state";
 
 export type Discovery = Model & {
@@ -10,7 +10,7 @@ export type Discovery = Model & {
   hostname: string | null;
   ip: string | null;
   is_external_dhcp: boolean | null;
-  last_seen: string;
+  last_seen: UtcTimestamp;
   mac_address: string | null;
   mac_organization: string;
   mdns: number | null;
diff --git a/src/testing/factories/discovery.ts b/src/testing/factories/discovery.ts
index 82dba7bd46f..6023943c724 100644
--- a/src/testing/factories/discovery.ts
+++ b/src/testing/factories/discovery.ts
@@ -4,6 +4,7 @@ import { model } from "./model";
 
 import type { Discovery } from "@/app/store/discovery/types";
 import type { Model } from "@/app/store/types/model";
+import { timestamp } from "./general";
 
 export const discovery = extend<Model, Discovery>(model, {
   discovery_id: () => `discovery-${random()}`,
@@ -13,7 +14,7 @@ export const discovery = extend<Model, Discovery>(model, {
   hostname: "discovery-hostname",
   ip: "192.168.1.1",
   is_external_dhcp: false,
-  last_seen: "Wed, 08 Jul. 2020 05:35:4",
+  last_seen: () => timestamp("Wed, 08 Jul. 2020 05:35:4"),
   mac_address: "00:00:00:00:00:00",
   mac_organization: "Business Corp, Inc.",
   mdns: 2,