In addition to automatically downloading updates, we can specify whether the Huawei smartphone should automatically install downloaded software updates overnight while the device is not in use.

Android 10 | EMUI 10.0
Step 1:  Open the  Settings
Step 2:  Tap on  System & updates
Step 3:  Tap on  Software update
Step 4:  Open the  Settings
Step 5:  Enable or disable  Update overnight
  1. Open the Settings
  2. Tap on System & updates
  3. Tap on Software update
  4. Open the Settings
  5. Enable or disable Update overnight

Huawei Instructions