diff --git a/Specs/e2e/CesiumPage.js b/Specs/e2e/CesiumPage.js
index 6f526235db5..80dee7abf32 100644
--- a/Specs/e2e/CesiumPage.js
+++ b/Specs/e2e/CesiumPage.js
@@ -17,11 +17,4 @@ export class CesiumPage {
         : `window.CESIUM_BASE_URL = "../../Build/CesiumUnminified/";`,
     });
   }
-
-  /**
-   * Updates the system time by 1 second. Useful for testing animations or other time-based actions.
-   */
-  async tick() {
-    await this.page.evaluate(() => window.__clock.tickAsync(1000));
-  }
 }
diff --git a/Specs/e2e/models.spec.js b/Specs/e2e/models.spec.js
index 3468bd8963f..dde25055055 100644
--- a/Specs/e2e/models.spec.js
+++ b/Specs/e2e/models.spec.js
@@ -34,8 +34,13 @@ test("loads animated model", async ({ cesiumPage }) => {
 
     viewer.trackedEntity = entity;
   });
+  await cesiumPage.page.clock.pauseAt(new Date("2023-12-25T14:00:00"));
+  await cesiumPage.page.waitForLoadState("networkidle");
+
+  await cesiumPage.page.clock.runFor(1000);
+  await cesiumPage.page.clock.runFor(1000);
+  await cesiumPage.page.clock.runFor(1000);
 
-  await cesiumPage.tick();
   await expect(cesiumPage.page).toHaveScreenshot();
 });
 
diff --git a/Specs/e2e/picking.spec.js b/Specs/e2e/picking.spec.js
index d51631436d5..6fa0ade7b38 100644
--- a/Specs/e2e/picking.spec.js
+++ b/Specs/e2e/picking.spec.js
@@ -48,13 +48,13 @@ test("Shows cartographic position on mouse over", async ({ cesiumPage }) => {
     }, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
   });
 
-  await cesiumPage.tick();
+  await cesiumPage.page.clock.runFor(1000);
   await cesiumPage.page.waitForLoadState("networkidle");
 
   const { width, height } = cesiumPage.page.viewportSize();
   await cesiumPage.page.mouse.move(width / 2, height / 2);
 
-  await cesiumPage.tick();
+  await cesiumPage.page.clock.runFor(1000);
 
   await expect(cesiumPage.page).toHaveScreenshot();
 });
diff --git a/Specs/e2e/sandcastle.spec.js b/Specs/e2e/sandcastle.spec.js
index c8cd554a60f..49bca01c161 100644
--- a/Specs/e2e/sandcastle.spec.js
+++ b/Specs/e2e/sandcastle.spec.js
@@ -9,12 +9,13 @@ for (const example of gallery) {
 
     await page.goto(example);
 
+    await page.clock.pauseAt(new Date("2023-12-25T14:00:00"));
+
     await page.waitForLoadState("networkidle");
 
-    await page.evaluate(() => window.__clock.tickAsync(1000));
-    await page.evaluate(() => window.__clock.tickAsync(1000));
-    await page.evaluate(() => window.__clock.tickAsync(1000));
-    await page.evaluate(() => window.__clock.tickAsync(1000));
+    await page.clock.runFor(1000);
+    await page.clock.runFor(1000);
+    await page.clock.runFor(1000);
 
     await expect(page).toHaveScreenshot({
       timeout: 20000,
diff --git a/Specs/e2e/test.js b/Specs/e2e/test.js
index 9c38cc4b114..13d8b15583e 100644
--- a/Specs/e2e/test.js
+++ b/Specs/e2e/test.js
@@ -3,19 +3,7 @@ import { CesiumPage } from "./CesiumPage.js";
 
 export const test = baseTest.extend({
   page: async ({ page }, use) => {
-    // Mock the current system time - Always use the exact same time
-    await page.addInitScript({
-      path: "node_modules/sinon/pkg/sinon.js",
-    });
-    await page.addInitScript(() => {
-      /* global sinon */
-      window.__clock = sinon.useFakeTimers({
-        now: 1703530800000, // 2023-12-25 14:00:00
-        shouldAdvanceTime: false,
-        toFake: ["Date", "hrtime", "performance"],
-      });
-    });
-
+    await page.clock.setFixedTime(new Date("2023-12-25T14:00:00"));
     await use(page);
   },
 
diff --git a/package.json b/package.json
index 81076bcf31d..006db69b324 100644
--- a/package.json
+++ b/package.json
@@ -56,10 +56,10 @@
   },
   "devDependencies": {
     "@playwright/test": "^1.41.1",
-    "chokidar": "^3.5.3",
+    "chokidar": "^4.0.1",
     "cloc": "^2.2.0-cloc",
     "compression": "^1.7.4",
-    "esbuild": "^0.23.0",
+    "esbuild": "^0.24.0",
     "eslint": "^9.1.1",
     "eslint-config-cesium": "^11.0.1",
     "eslint-plugin-html": "^8.1.1",
@@ -90,7 +90,7 @@
     "karma-safari-launcher": "^1.0.0",
     "karma-sourcemap-loader": "^0.4.0",
     "karma-spec-reporter": "^0.0.36",
-    "markdownlint-cli": "^0.41.0",
+    "markdownlint-cli": "^0.42.0",
     "merge-stream": "^2.0.0",
     "mkdirp": "^3.0.1",
     "node-fetch": "^3.2.10",
@@ -99,7 +99,6 @@
     "prismjs": "^1.28.0",
     "request": "^2.79.0",
     "rimraf": "^5.0.0",
-    "sinon": "^18.0.0",
     "tsd-jsdoc": "^2.5.0",
     "typescript": "^5.3.2",
     "yargs": "^17.0.1"