diff --git a/src/app/core/layout/store-layout/store-header/store-header.component.html b/src/app/core/layout/store-layout/store-header/store-header.component.html
index 61d06cd..2a385e4 100644
--- a/src/app/core/layout/store-layout/store-header/store-header.component.html
+++ b/src/app/core/layout/store-layout/store-header/store-header.component.html
@@ -153,7 +153,7 @@
   </div>
 
   <div class="store-layout__categories d-none d-md-block">
-    <div class="container-xl px-3 px-md-4">
+    <div class="container-xl h-100 px-3 px-md-4 d-flex align-items-center">
       @if (displayCategories()) {
         <div class="store-layout__category-menu">
           <button
@@ -176,6 +176,17 @@
           />
         </div>
       }
+
+      @if (checkoutRemainingTime(); as remainingTime) {
+        <div
+          class="store-layout__checkout-timer ms-auto d-flex align-items-baseline gap-3"
+          role="timer"
+          aria-label="Tiempo restante de compra"
+        >
+          <span class="store-layout__checkout-timer-label">Tiempo restante de compra:</span>
+          <span class="store-layout__checkout-timer-value">{{ remainingTime }}</span>
+        </div>
+      }
     </div>
   </div>
 </header>
diff --git a/src/app/core/layout/store-layout/store-header/store-header.component.scss b/src/app/core/layout/store-layout/store-header/store-header.component.scss
index f86987c..256dd7c 100644
--- a/src/app/core/layout/store-layout/store-header/store-header.component.scss
+++ b/src/app/core/layout/store-layout/store-header/store-header.component.scss
@@ -14,6 +14,22 @@
   height: 3.5rem;
 }
 
+.store-layout__checkout-timer {
+  color: var(--tenant-primary);
+  font-weight: 700;
+  white-space: nowrap;
+}
+
+.store-layout__checkout-timer-label {
+  font-size: 13px;
+}
+
+.store-layout__checkout-timer-value {
+  font-size: 20px;
+  line-height: 1;
+  font-variant-numeric: tabular-nums;
+}
+
 .store-layout__brand-slot {
   min-width: 150px;
 }
diff --git a/src/app/core/layout/store-layout/store-header/store-header.component.ts b/src/app/core/layout/store-layout/store-header/store-header.component.ts
index 9d7723b..dfe1831 100644
--- a/src/app/core/layout/store-layout/store-header/store-header.component.ts
+++ b/src/app/core/layout/store-layout/store-header/store-header.component.ts
@@ -1,4 +1,13 @@
-import { Component, ElementRef, HostListener, inject, input, output, signal } from '@angular/core';
+import {
+  Component,
+  computed,
+  ElementRef,
+  HostListener,
+  inject,
+  input,
+  output,
+  signal,
+} from '@angular/core';
 import { Router, RouterLink } from '@angular/router';
 import { AuthUser } from '../../../services/auth/auth.interfaces';
 import { CartIconComponent } from '../../../../shared/components/cart-icon/cart-icon.component';
@@ -40,6 +49,7 @@ export class StoreHeaderComponent {
   readonly displaySeachBar = input(true);
   readonly displayCart = input(true);
   readonly cartDisabled = input(false);
+  readonly checkoutRemainingSeconds = input<number | null>(null);
   readonly cartClick = output<void>();
   readonly ticketsClick = output<void>();
   readonly loginClick = output<void>();
@@ -53,6 +63,18 @@ export class StoreHeaderComponent {
   protected readonly minSearchLength = 3;
   protected readonly showSearchError = signal(false);
   protected readonly searchControl = new FormControl('', { nonNullable: true });
+  protected readonly checkoutRemainingTime = computed(() => {
+    const remainingSeconds = this.checkoutRemainingSeconds();
+
+    if (remainingSeconds === null) {
+      return null;
+    }
+
+    const minutes = Math.floor(remainingSeconds / 60);
+    const seconds = remainingSeconds % 60;
+
+    return `${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`;
+  });
 
   protected onCartClick(): void {
     if (this.cartDisabled()) {
diff --git a/src/app/core/layout/store-layout/store-layout.component.html b/src/app/core/layout/store-layout/store-layout.component.html
index 896168b..01f5dfe 100644
--- a/src/app/core/layout/store-layout/store-layout.component.html
+++ b/src/app/core/layout/store-layout/store-layout.component.html
@@ -13,6 +13,7 @@
     [displaySeachBar]="tenant()?.display_seach_bar ?? true"
     [displayCart]="displayCart()"
     [cartDisabled]="isCheckoutRoute()"
+    [checkoutRemainingSeconds]="isCheckoutRoute() ? checkoutRemainingSeconds() : null"
     (cartClick)="onCartClick()"
     (ticketsClick)="onTicketsClick()"
     (loginClick)="onLoginClick()"
diff --git a/src/app/core/layout/store-layout/store-layout.component.spec.ts b/src/app/core/layout/store-layout/store-layout.component.spec.ts
index 2f6f160..b222a46 100644
--- a/src/app/core/layout/store-layout/store-layout.component.spec.ts
+++ b/src/app/core/layout/store-layout/store-layout.component.spec.ts
@@ -24,6 +24,7 @@ import { AuthUser } from '../../services/auth/auth.interfaces';
 import { StoreLayoutComponent } from './store-layout.component';
 import { StoreHeaderComponent } from './store-header/store-header.component';
 import { CheckoutService } from '../../services/checkout.service';
+import { CheckoutCountdownService } from '../../services/checkout-countdown.service';
 import { TenantUrlSerializer } from '../../services/tenant-url.serializer';
 
 const tenant: Tenant = {
@@ -150,6 +151,7 @@ describe('StoreLayoutComponent', () => {
   let tenantState = signal<Tenant | null>(tenant);
   let cartState = signal<Cart | null>(null);
   let authUserState = signal<AuthUser | null>(null);
+  let checkoutRemainingSecondsState = signal<number | null>(null);
   let checkoutServiceStub: { startCheckout: ReturnType<typeof vi.fn> };
   let queryParamMapState: BehaviorSubject<ParamMap>;
 
@@ -157,6 +159,7 @@ describe('StoreLayoutComponent', () => {
     tenantState = signal<Tenant | null>(tenant);
     cartState = signal<Cart | null>(null);
     authUserState = signal<AuthUser | null>(null);
+    checkoutRemainingSecondsState = signal<number | null>(null);
     queryParamMapState = new BehaviorSubject(convertToParamMap({}));
     const isAuthenticatedState = signal(false);
     checkoutServiceStub = {
@@ -215,6 +218,12 @@ describe('StoreLayoutComponent', () => {
           provide: CheckoutService,
           useValue: checkoutServiceStub,
         },
+        {
+          provide: CheckoutCountdownService,
+          useValue: {
+            remainingSeconds: checkoutRemainingSecondsState.asReadonly(),
+          },
+        },
       ],
     }).compileComponents();
   });
@@ -271,6 +280,24 @@ describe('StoreLayoutComponent', () => {
     expect(element.querySelector('.store-layout__cart-overlay')).toBeNull();
   });
 
+  it('shows the synchronized checkout countdown aligned in the header', () => {
+    const router = TestBed.inject(Router);
+    vi.spyOn(router, 'url', 'get').mockReturnValue('/checkout/25');
+    checkoutRemainingSecondsState.set(587);
+
+    const fixture = TestBed.createComponent(StoreLayoutComponent);
+    fixture.detectChanges();
+
+    const element = fixture.nativeElement as HTMLElement;
+
+    expect(element.querySelector('.store-layout__checkout-timer-label')?.textContent).toContain(
+      'Tiempo restante de compra:',
+    );
+    expect(element.querySelector('.store-layout__checkout-timer-value')?.textContent?.trim()).toBe(
+      '09:47',
+    );
+  });
+
   it('hides the configured header elements when the tenant disables them', () => {
     tenantState.set({
       ...tenant,
diff --git a/src/app/core/layout/store-layout/store-layout.component.ts b/src/app/core/layout/store-layout/store-layout.component.ts
index e812afc..ccd0869 100644
--- a/src/app/core/layout/store-layout/store-layout.component.ts
+++ b/src/app/core/layout/store-layout/store-layout.component.ts
@@ -24,6 +24,7 @@ import {
 } from '../../services/checkout.service';
 import { ToastService } from '../../services/toast.service';
 import { Category } from '../../services/tenant.interface';
+import { CheckoutCountdownService } from '../../services/checkout-countdown.service';
 
 @Component({
   selector: 'app-store-layout',
@@ -42,6 +43,7 @@ export class StoreLayoutComponent implements OnInit {
   private readonly cartService = inject(CartService);
   private readonly authService = inject(AuthService);
   private readonly checkoutService = inject(CheckoutService);
+  private readonly checkoutCountdownService = inject(CheckoutCountdownService);
   private readonly toastService = inject(ToastService);
   private readonly router = inject(Router);
   private readonly route = inject(ActivatedRoute);
@@ -49,6 +51,7 @@ export class StoreLayoutComponent implements OnInit {
 
   protected readonly isCartOpen = signal(false);
   protected readonly isCheckoutRoute = signal(this.isCheckoutUrl(this.router.url));
+  protected readonly checkoutRemainingSeconds = this.checkoutCountdownService.remainingSeconds;
   protected readonly isCreatingPurchase = signal(false);
   protected readonly displayCart = computed(() => this.tenant()?.display_cart ?? true);
   protected readonly cartEditingPolicy = computed(() => this.tenant()?.cart_editing_policy ?? null);