diff --git a/src/instrumentation.ts b/src/instrumentation.ts
index c899969..ce3c50f 100644
--- a/src/instrumentation.ts
+++ b/src/instrumentation.ts
@@ -49,15 +49,14 @@ export async function register() {
       triggerCronEndpoint("notifications", "Notifications");
     });
 
-    // Schedule Garmin sync 4 times daily (every 6 hours) to ensure data is available
-    // before European morning notifications
-    cron.default.schedule("0 0,6,12,18 * * *", () => {
+    // Schedule Garmin sync 8 times daily (every 3 hours) to keep data fresh
+    cron.default.schedule("0 */3 * * *", () => {
       console.log("[cron] Triggering Garmin sync...");
       triggerCronEndpoint("garmin-sync", "Garmin sync");
     });
 
     console.log(
-      "[cron] Scheduler started - notifications every 15 min, Garmin sync at 00:00/06:00/12:00/18:00 UTC",
+      "[cron] Scheduler started - notifications every 15 min, Garmin sync every 3 hours",
     );
   }
 }