diff --git a/src/renderer/src/components/status-bar/UsageRosterPanel.test.tsx b/src/renderer/src/components/status-bar/UsageRosterPanel.test.tsx
index 54c8e1fc85e..c6a2d115a61 100644
--- a/src/renderer/src/components/status-bar/UsageRosterPanel.test.tsx
+++ b/src/renderer/src/components/status-bar/UsageRosterPanel.test.tsx
@@ -1,15 +1,30 @@
 import { renderToStaticMarkup } from 'react-dom/server'
-import { describe, expect, it, vi } from 'vitest'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
 import type { ProviderRateLimits } from '../../../../shared/rate-limit-types'
 
+const mocks = vi.hoisted(() => ({
+  now: 1_000_000_000,
+  useResetCountdownClock: vi.fn(() => 1_000_000_000)
+}))
+
 vi.mock('@/i18n/i18n', () => ({
   translate: (_key: string, fallback: string) => fallback
 }))
 vi.mock('@/lib/agent-catalog', () => ({
   AgentIcon: ({ agent }: { agent: string }) => <span data-agent-icon={agent} />
 }))
+vi.mock('@/hooks/useResetCountdownClock', () => ({
+  useResetCountdownClock: mocks.useResetCountdownClock
+}))
+vi.mock('@/components/ui/dropdown-menu', () => ({
+  DropdownMenuItem: ({
+    children,
+    onSelect: _onSelect,
+    ...props
+  }: React.PropsWithChildren<{ onSelect?: () => void }>) => <div {...props}>{children}</div>
+}))
 
-import { UsageRow } from './UsageRosterPanel'
+import { UsageRosterPanel, UsageRow } from './UsageRosterPanel'
 
 const signedOutCodex: ProviderRateLimits = {
   provider: 'codex',
@@ -21,6 +36,10 @@ const signedOutCodex: ProviderRateLimits = {
 }
 
 describe('UsageRow', () => {
+  beforeEach(() => {
+    mocks.useResetCountdownClock.mockClear()
+  })
+
   it('renders sign-in as row copy instead of nesting an interactive button', () => {
     const markup = renderToStaticMarkup(
       <UsageRow
@@ -28,6 +47,7 @@ describe('UsageRow', () => {
         display="used"
         state={{ kind: 'sign-in', statusLabel: 'not signed in' }}
         showSignInAction
+        now={mocks.now}
       />
     )
 
@@ -53,6 +73,7 @@ describe('UsageRow', () => {
         display="remaining"
         state={{ kind: 'usage', statusLabel: null }}
         showSignInAction={false}
+        now={mocks.now}
       />
     )
 
@@ -60,4 +81,44 @@ describe('UsageRow', () => {
     expect(markup).toContain('width:75%')
     expect(markup).not.toContain('width:25%')
   })
+
+  it('uses one shared clock for live reset labels across the roster', () => {
+    const sessionReset = mocks.now + 2 * 60_000
+    const weeklyReset = mocks.now + 7 * 24 * 60 * 60_000
+    const markup = renderToStaticMarkup(
+      <UsageRosterPanel
+        providers={[
+          {
+            ...signedOutCodex,
+            session: {
+              usedPercent: 25,
+              windowMinutes: 300,
+              resetsAt: sessionReset,
+              resetDescription: null
+            },
+            weekly: {
+              usedPercent: 10,
+              windowMinutes: 10_080,
+              resetsAt: weeklyReset,
+              resetDescription: null
+            },
+            status: 'ok',
+            error: null
+          }
+        ]}
+        display="used"
+        isRefreshing={false}
+        onRefresh={() => {}}
+        onOpenProvider={() => {}}
+        onSignIn={() => {}}
+        canSignIn={() => true}
+        onManageAccounts={() => {}}
+        onUsageDetails={() => {}}
+      />
+    )
+
+    expect(mocks.useResetCountdownClock).toHaveBeenCalledOnce()
+    expect(mocks.useResetCountdownClock).toHaveBeenCalledWith([sessionReset, weeklyReset])
+    expect(markup).toContain('Resets in 2m')
+  })
 })
diff --git a/src/renderer/src/components/status-bar/UsageRosterPanel.tsx b/src/renderer/src/components/status-bar/UsageRosterPanel.tsx
index 21180a733c4..2d441896108 100644
--- a/src/renderer/src/components/status-bar/UsageRosterPanel.tsx
+++ b/src/renderer/src/components/status-bar/UsageRosterPanel.tsx
@@ -1,6 +1,7 @@
 import React from 'react'
 import { ChevronRight, RefreshCw } from 'lucide-react'
 import { DropdownMenuItem } from '@/components/ui/dropdown-menu'
+import { useResetCountdownClock } from '@/hooks/useResetCountdownClock'
 import { translate } from '@/i18n/i18n'
 import { formatRateLimitWindowChipLabel, formatWindowLabel } from '@/lib/window-label-formatter'
 import type { ProviderRateLimits, RateLimitWindow } from '../../../../shared/rate-limit-types'
@@ -63,14 +64,14 @@ export function getTightestUsageSection(p: ProviderRateLimits): UsageSection | n
 }
 
 // The soonest-resetting window summarizes the agent's next reset in one line.
-function soonestResetLabel(sections: UsageSection[]): string | null {
+function soonestResetLabel(sections: UsageSection[], now: number): string | null {
   const resets = sections
     .map((s) => s.window.resetsAt)
-    .filter((r): r is number => typeof r === 'number')
+    .filter((r): r is number => typeof r === 'number' && Number.isFinite(r))
   if (resets.length === 0) {
     return null
   }
-  return formatResetCountdown(Math.min(...resets) - Date.now())
+  return formatResetCountdown(Math.min(...resets) - now)
 }
 
 // Presentational row: a compact header (icon · name · plan · reset) with
@@ -81,18 +82,20 @@ export function UsageRow({
   p,
   display,
   state,
-  showSignInAction
+  showSignInAction,
+  now
 }: {
   p: ProviderRateLimits
   display: UsagePercentageDisplay
   state: UsageRosterRowState
   showSignInAction: boolean
+  now: number
 }): React.JSX.Element {
   const sections = usedSections(p)
   const hasUsage = sections.length > 0
   const name = getProviderDisplayName(p.provider)
   const plan = formatPlanLabel(p.planType)
-  const reset = hasUsage ? soonestResetLabel(sections) : null
+  const reset = hasUsage ? soonestResetLabel(sections, now) : null
 
   return (
     <div className="flex min-w-0 flex-1 flex-col gap-1">
@@ -176,6 +179,12 @@ export function UsageRosterPanel({
   // default clickable row.
   renderRow?: (p: ProviderRateLimits, row: React.ReactNode) => React.ReactNode
 }): React.JSX.Element {
+  // Why: one boundary-scheduled clock keeps every open row current without per-provider timers.
+  const now = useResetCountdownClock(
+    providers.flatMap((provider) =>
+      usedSections(provider).map((section) => section.window.resetsAt)
+    )
+  )
   // Worst-first so the agent nearest a limit sits on top.
   const sorted = [...providers].sort(
     (a, b) => providerMaxUsed(usedSections(b)) - providerMaxUsed(usedSections(a))
@@ -211,7 +220,13 @@ export function UsageRosterPanel({
         const state = getUsageRosterRowState(p, usedSections(p).length > 0)
         const showSignInAction = state.kind === 'sign-in' && canSignIn(p.provider)
         const rowNode = (
-          <UsageRow p={p} display={display} state={state} showSignInAction={showSignInAction} />
+          <UsageRow
+            p={p}
+            display={display}
+            state={state}
+            showSignInAction={showSignInAction}
+            now={now}
+          />
         )
         if (showSignInAction) {
           return (