diff --git a/src/components/v3/app/ActivityLogPanel.tsx b/src/components/v3/app/ActivityLogPanel.tsx
index db6a1f2..aa45061 100644
--- a/src/components/v3/app/ActivityLogPanel.tsx
+++ b/src/components/v3/app/ActivityLogPanel.tsx
@@ -3,6 +3,7 @@
 import { useEffect, useState } from "react";
 import { fetchActivity } from "@/lib/gateway/client";
 import type { GatewayActivity } from "@/lib/gateway/types";
+import { formatDateTime } from "@/lib/format";
 import { AccentButton, Card } from "@/components/v3/ui";
 
 export function ActivityLogPanel() {
@@ -42,20 +43,25 @@ export function ActivityLogPanel() {
         activity.map((a) => (
           <div
             key={a.id}
-            className="flex items-center gap-3.5 border-b border-white/[0.04] px-5 py-3.5"
+            className="flex items-start gap-3.5 border-b border-white/[0.04] px-5 py-3.5"
           >
             <span className="flex h-8 w-8 items-center justify-center rounded-lg border border-white/[0.08] bg-[var(--accent)]/10 font-mono text-sm text-[var(--accent-hi)]">
               ◎
             </span>
-            <div className="min-w-0 flex-1">
-              <div className="text-sm font-medium">{a.action}</div>
-              <div className="font-mono text-[11px] text-[var(--text-3)]">
-                {[a.ip, a.device, a.app].filter(Boolean).join(" · ")}
+            <div className="min-w-0 flex-1 sm:flex sm:items-start sm:justify-between sm:gap-4">
+              <div className="min-w-0">
+                <div className="text-sm font-medium">{a.action}</div>
+                <div className="font-mono text-[11px] text-[var(--text-3)]">
+                  {[a.ip, a.device, a.app].filter(Boolean).join(" · ")}
+                </div>
               </div>
+              <time
+                dateTime={a.created_at}
+                className="mt-1 block shrink-0 font-mono text-[11px] text-[var(--text-3)] sm:mt-0 sm:text-right"
+              >
+                {formatDateTime(a.created_at)}
+              </time>
             </div>
-            <span className="shrink-0 font-mono text-[11px] text-[var(--text-3)]">
-              {new Date(a.created_at).toLocaleDateString()}
-            </span>
           </div>
         ))
       )}
@@ -73,4 +79,4 @@ export function ActivityLogPanel() {
       )}
     </Card>
   );
-}
\ No newline at end of file
+}
diff --git a/src/lib/format.test.ts b/src/lib/format.test.ts
index aa3e9a9..66e587c 100644
--- a/src/lib/format.test.ts
+++ b/src/lib/format.test.ts
@@ -2,6 +2,7 @@ import { describe, expect, it, vi, afterEach } from "vitest";
 import {
   clientActivity,
   formatBytes,
+  formatDateTime,
   isRecentTimestamp,
   timestampMs,
 } from "./format";
@@ -42,6 +43,20 @@ describe("timestampMs", () => {
   });
 });
 
+describe("formatDateTime", () => {
+  it("includes the clock time for ISO timestamps", () => {
+    expect(
+      formatDateTime("2026-08-28T14:35:00.000Z", "en-US", {
+        timeZone: "UTC",
+      })
+    ).toBe("Aug 28, 2026, 2:35 PM");
+  });
+
+  it("returns a placeholder for missing timestamps", () => {
+    expect(formatDateTime("")).toBe("—");
+  });
+});
+
 describe("time-window helpers", () => {
   afterEach(() => vi.useRealTimers());
 
diff --git a/src/lib/format.ts b/src/lib/format.ts
index ca54fe2..97c97e9 100644
--- a/src/lib/format.ts
+++ b/src/lib/format.ts
@@ -41,6 +41,24 @@ export function formatRelativeTime(input?: string | number | null): string {
   return `${day}d ago`;
 }
 
+/** Locale-aware date + time for audit/activity timestamps. */
+export function formatDateTime(
+  input?: string | number | null,
+  locale?: Intl.LocalesArgument,
+  options: Intl.DateTimeFormatOptions = {}
+): string {
+  const ms = timestampMs(input);
+  if (ms == null) return "—";
+  return new Intl.DateTimeFormat(locale, {
+    month: "short",
+    day: "numeric",
+    year: "numeric",
+    hour: "numeric",
+    minute: "2-digit",
+    ...options,
+  }).format(new Date(ms));
+}
+
 /** Pick label + timestamp for node liveness UI (matches VPN app logic). */
 export function nodeActivityDisplay(
   node: {