diff --git a/src/pages/Editor.vue b/src/pages/Editor.vue
index 38c033fa..1ee50008 100644
--- a/src/pages/Editor.vue
+++ b/src/pages/Editor.vue
@@ -1888,16 +1888,23 @@ export default {
     },
 
     // format a number based timestamp like 24.32 to a string like 00:24:320
+    // or a number like 3600.32 to a string like 01:00:320
     formatTimestamp(timestamp) {
-      const minutes = Math.floor(timestamp / 60);
+      const hours = Math.floor(timestamp / 3600);
+      const minutes = Math.floor((timestamp % 3600) / 60);
       const seconds = Math.floor(timestamp % 60);
       const milliseconds = Math.floor((timestamp % 1) * 1000);
 
+      const formattedHours = String(hours).padStart(2, '0');
       const formattedMinutes = String(minutes).padStart(2, '0');
       const formattedSeconds = String(seconds).padStart(2, '0');
       const formattedMilliseconds = String(milliseconds).padStart(3, '0');
 
-      return `${formattedMinutes}:${formattedSeconds}:${formattedMilliseconds}`;
+      if (hours > 0) {
+        return `${formattedHours}:${formattedMinutes}:${formattedSeconds}:${formattedMilliseconds}`;
+      } else {
+        return `${formattedMinutes}:${formattedSeconds}:${formattedMilliseconds}`;
+      }
     },
 
     /**