diff --git a/packages/ui/tui/tests/snapshots/tool-cards-hidden-folded.expected.txt b/packages/ui/tui/tests/snapshots/tool-cards-hidden-folded.expected.txt
index 2aacdef876..d4da5ab39c 100644
--- a/packages/ui/tui/tests/snapshots/tool-cards-hidden-folded.expected.txt
+++ b/packages/ui/tui/tests/snapshots/tool-cards-hidden-folded.expected.txt
@@ -20,11 +20,11 @@ buffer
 8| "You                                                                                                 "
   style 0-2 fg=bright-magenta bold underline
 9| "Refactor the renderer.                                                                              "
-10| "Model wait 0.0s · Completed 2026-07-29 22:23:17                                                     "
+10| "Model wait 0.0s · Completed 2026-07-29 22:30:00                                                     "
   style 0-46 dim
 11| <blank>
 12| "The renderer is sound; no refactor needed.                                                          "
-13| "Model wait 0.0s · Completed 2026-07-29 22:23:17                                                     "
+13| "Model wait 0.0s · Completed 2026-07-29 22:30:00                                                     "
   style 0-46 dim
 14| <blank>
 15| "Tool and context cards expanded.                                                                    "
diff --git a/packages/ui/tui/tests/tui.snapshot.ts b/packages/ui/tui/tests/tui.snapshot.ts
index 3f6c72ab18..d56db82f14 100644
--- a/packages/ui/tui/tests/tui.snapshot.ts
+++ b/packages/ui/tui/tests/tui.snapshot.ts
@@ -611,6 +611,7 @@ describe('TUI terminal-state snapshots', () => {
   })
 
   it('pins the hidden phase folding a multi-step turn into one assistant message', async () => {
+    const nowSpy = vi.spyOn(Date, 'now').mockReturnValue(new Date(2026, 6, 29, 22, 30, 0).getTime())
     const harness = await setupSnapshot({
       tools: ADVANCED_CARD_TOOLS,
       config: { maxToolOutputLines: 3 },
@@ -632,6 +633,7 @@ describe('TUI terminal-state snapshots', () => {
     await renderAfter(harness, () => { harness.terminal.send('\x0f') })
     await renderAfter(harness, () => { harness.terminal.send('\x0f') })
     await checkpoint('tool-cards-hidden-folded', harness.terminal, { includeScrollback: true })
+    nowSpy.mockRestore()
     await disposeSnapshot(harness)
   })