On many devices the alarm option must be enabled to ensure the device will wake up at the correct time to resume running actions. Without this option enabled the operating system may schedule a wakeup within a wakeup window in an attempt to reduce battery usage, which means it won't resume after the requested delay. | On many devices the alarm option must be enabled to ensure the device will wake up at the correct time to resume running actions. Without this option enabled the operating system may schedule a wakeup within a wakeup window in an attempt to reduce battery usage, which means it won't resume after the requested delay. |