diff --git a/tests/library/playwright.config.ts b/tests/library/playwright.config.ts
index 9ab64c22be..a70c1f5e6d 100644
--- a/tests/library/playwright.config.ts
+++ b/tests/library/playwright.config.ts
@@ -134,6 +134,7 @@ for (const browserName of browserNames) {
         mode,
         video: !!video,
         trace: !!trace,
+        clock: 'clock-' + (process.env.PW_CLOCK || 'default'),
       },
     });
   }
diff --git a/tests/playwright-test/playwright.config.ts b/tests/playwright-test/playwright.config.ts
index 8536ed992e..6be40d617f 100644
--- a/tests/playwright-test/playwright.config.ts
+++ b/tests/playwright-test/playwright.config.ts
@@ -49,4 +49,7 @@ export default defineConfig({
     },
   ],
   reporter: reporters(),
+  metadata: {
+    clock: 'clock-' + (process.env.PW_CLOCK || 'default'),
+  },
 });