diff --git a/firmware/timing_control.ino b/firmware/timing_control.ino
index a2fc06a..e237c5b 100644
--- a/firmware/timing_control.ino
+++ b/firmware/timing_control.ino
@@ -142,9 +142,9 @@ void tc_update_loop()
     return;
   }
 
-  if ((timeClient.getMinutes() % 10) != 0 || last_min_check == timeClient.getMinutes()) // && tc_testOngoing == false
+  if ((hour() % 10) != 0 || last_min_check == minute()) // && tc_testOngoing == false
   {
-    last_min_check = timeClient.getMinutes();
+    last_min_check = minute();
     return; // only run every 10 minutes
   }