To set the timing off of mobile WiFi, you can follow these steps:
First, open the Settings screen of your mobile WiFi device.
Then, find \"Timed off\" or a similar option.
In this option, you can set the time and date of the shutdown. Select the time you want to turn off WiFi and save the Settings. In this way, the mobile WiFi will automatically turn off at a specified time to save battery and traffic. Note that different mobile WiFi devices may have different setup interfaces and option names, but the general steps should be similar.