diff --git a/src/browser/base/content/zen-styles/zen-media-controls.css b/src/browser/base/content/zen-styles/zen-media-controls.css
index 734634406..3532afffb 100644
--- a/src/browser/base/content/zen-styles/zen-media-controls.css
+++ b/src/browser/base/content/zen-styles/zen-media-controls.css
@@ -163,6 +163,7 @@
     font-size: x-small;
     opacity: 0.7;
     font-weight: 500;
+    font-variant-numeric: tabular-nums;
   }
 }