diff --git a/app/src/main/java/de/ccc/events/badge/card10/Constants.kt b/app/src/main/java/de/ccc/events/badge/card10/Constants.kt
index c69454e7f3410cbe81f04e98a49e80ea5828282a..5190c9fc6edf94bd8c3e61ac09cad7a6178a7944 100644
--- a/app/src/main/java/de/ccc/events/badge/card10/Constants.kt
+++ b/app/src/main/java/de/ccc/events/badge/card10/Constants.kt
@@ -35,3 +35,5 @@ val ROCKETS_CHARACTERISTIC_UUID = UUID.fromString("42230210-2342-2342-2342-23422
 val SINGLE_LED_CHARACTERISTIC_UUID = UUID.fromString("42230211-2342-2342-2342-234223422342")
 val LIGHT_SENSOR_CHARACTERISTIC_UUID = UUID.fromString("422302f0-2342-2342-2342-234223422342")
 val TIME_CHARACTERISTIC_UUID = UUID.fromString("42230201-2342-2342-2342-234223422342")
+
+const val UPDATE_CLOCK_FREQUENCY_MINS = 5
diff --git a/app/src/main/java/de/ccc/events/badge/card10/MainActivity.kt b/app/src/main/java/de/ccc/events/badge/card10/MainActivity.kt
index 8d43178dc386d7287c2350ace1e21782f14f10d1..923af46abe4b3e8c6fff1c5717785a85170f4a81 100644
--- a/app/src/main/java/de/ccc/events/badge/card10/MainActivity.kt
+++ b/app/src/main/java/de/ccc/events/badge/card10/MainActivity.kt
@@ -108,7 +108,7 @@ class MainActivity : AppCompatActivity() {
         if (!bluetoothAdapter.bondedDevices.isEmpty()
         ) {
             val updateClockRequest =
-                PeriodicWorkRequestBuilder<UpdateClockJob>(1, TimeUnit.MINUTES)
+                PeriodicWorkRequestBuilder<UpdateClockJob>(UPDATE_CLOCK_FREQUENCY_MINS.toLong(), TimeUnit.MINUTES)
                     .build()
             workManager
                 .enqueueUniquePeriodicWork(WORK_NAME, ExistingPeriodicWorkPolicy.REPLACE, updateClockRequest)