diff --git a/addons/web/static/tests/core/effects/effect_service_tests.js b/addons/web/static/tests/core/effects/effect_service_tests.js
index ed95e09b875..6e71fe24881 100644
--- a/addons/web/static/tests/core/effects/effect_service_tests.js
+++ b/addons/web/static/tests/core/effects/effect_service_tests.js
@@ -49,7 +49,7 @@ QUnit.module("Effect Service", (hooks) => {
             message: markup("<div>Congrats!</div>"),
         };
 
-        execRegisteredTimeouts = mockTimeout();
+        execRegisteredTimeouts = mockTimeout().execRegisteredTimeouts;
         patchWithCleanup(session, { show_effect: true }); // enable effects
 
         serviceRegistry.add("user", userService);
diff --git a/addons/web/static/tests/core/transition_test.js b/addons/web/static/tests/core/transition_test.js
index 32b2211b0e3..ee9897368ce 100644
--- a/addons/web/static/tests/core/transition_test.js
+++ b/addons/web/static/tests/core/transition_test.js
@@ -20,7 +20,7 @@ QUnit.test("useTransition hook", async (assert) => {
         }
     }
     Parent.template = xml`<div t-if="transition.shouldMount" t-att-class="transition.className"/>`;
-    const execRegisteredTimeouts = mockTimeout();
+    const { execRegisteredTimeouts } = mockTimeout();
 
     const target = getFixture();
     const parent = await mount(Parent, target);
@@ -58,7 +58,7 @@ QUnit.test("Transition HOC", async (assert) => {
         </Transition>
     `;
     Parent.components = { Transition };
-    const execRegisteredTimeouts = mockTimeout();
+    const { execRegisteredTimeouts } = mockTimeout();
 
     const target = getFixture();
     const parent = await mount(Parent, target);
diff --git a/addons/web/static/tests/core/utils/timing_tests.js b/addons/web/static/tests/core/utils/timing_tests.js
index f95435a65ca..87a1746062c 100644
--- a/addons/web/static/tests/core/utils/timing_tests.js
+++ b/addons/web/static/tests/core/utils/timing_tests.js
@@ -69,7 +69,7 @@ QUnit.module("utils", () => {
     });
 
     QUnit.test("debounce with immediate", async function (assert) {
-        const execRegisteredTimeouts = mockTimeout();
+        const { execRegisteredTimeouts } = mockTimeout();
         const myFunc = () => {
             assert.step("myFunc");
             return 42;
@@ -100,7 +100,7 @@ QUnit.module("utils", () => {
 
     QUnit.test("debounced call can be cancelled", async function (assert) {
         assert.expect(3);
-        const execRegisteredTimeouts = mockTimeout();
+        const { execRegisteredTimeouts } = mockTimeout();
         const myFunc = () => {
             assert.step("myFunc");
         };
diff --git a/addons/web/static/tests/helpers/utils.js b/addons/web/static/tests/helpers/utils.js
index d5ad5e034d9..60c04085940 100644
--- a/addons/web/static/tests/helpers/utils.js
+++ b/addons/web/static/tests/helpers/utils.js
@@ -360,21 +360,38 @@ for (const propName of Object.keys(window.console)) {
 
 export function mockTimeout() {
     const timeouts = new Map();
+    let currentTime = 0;
     let id = 1;
     patchWithCleanup(browser, {
-        setTimeout(fn) {
-            timeouts.set(id, fn);
+        setTimeout(fn, delay = 0) {
+            timeouts.set(id, { fn, scheduledFor: delay + currentTime, id });
             return id++;
         },
         clearTimeout(id) {
             timeouts.delete(id);
         },
     });
-    return function execRegisteredTimeouts() {
-        for (const fn of timeouts.values()) {
-            fn();
-        }
-        timeouts.clear();
+    return {
+        execRegisteredTimeouts() {
+            for (const { fn } of timeouts.values()) {
+                fn();
+            }
+            timeouts.clear();
+        },
+        async advanceTime(duration) {
+            // wait here so all microtasktick scheduled in this frame can be
+            // executed and possibly register their own timeout
+            await nextTick();
+            currentTime += duration;
+            for (const { fn, scheduledFor, id } of timeouts.values()) {
+                if (scheduledFor <= currentTime) {
+                    fn();
+                    timeouts.delete(id);
+                }
+            }
+            // wait here to make sure owl can update the UI
+            await nextTick();
+        },
     };
 }
 
diff --git a/addons/web/static/tests/webclient/loading_indicator_tests.js b/addons/web/static/tests/webclient/loading_indicator_tests.js
index 55c34aa3165..a1c9ba20ee9 100644
--- a/addons/web/static/tests/webclient/loading_indicator_tests.js
+++ b/addons/web/static/tests/webclient/loading_indicator_tests.js
@@ -151,7 +151,7 @@ QUnit.test("loading indicator blocks UI", async (assert) => {
 
 QUnit.test("loading indicator doesn't unblock ui if it didn't block it", async (assert) => {
     const env = await makeTestEnv({ ...baseConfig });
-    const execRegisteredTimeouts = mockTimeout();
+    const { execRegisteredTimeouts } = mockTimeout();
     const ui = env.services.ui;
     ui.bus.on("BLOCK", null, () => {
         assert.step("block");
diff --git a/addons/web/static/tests/webclient/navbar_tests.js b/addons/web/static/tests/webclient/navbar_tests.js
index db98b380a8c..3a1cdf38f28 100644
--- a/addons/web/static/tests/webclient/navbar_tests.js
+++ b/addons/web/static/tests/webclient/navbar_tests.js
@@ -427,7 +427,7 @@ QUnit.test("'more' menu sections properly updated on app change", async (assert)
 QUnit.test("Do not execute adapt when navbar is destroyed", async (assert) => {
     assert.expect(5);
 
-    const execRegisteredTimeouts = mockTimeout();
+    const { execRegisteredTimeouts } = mockTimeout();
     class MyNavbar extends NavBar {
         async adapt() {
             assert.step("adapt NavBar");