Unfortunately, google has removed Network Scheduler from the google Play store because apparently the data safety form was missing. However, the App does not collect any data whatsoever.
Please note, that the app does not work as well as it did in older Android versions, because the possibility to control the sensors of your phone through the API have been reduced in newer Android versions. If you still want to use the app, download it from another App store or from hear:
Network Scheduler gives you full control over enabling or disabling Wi-Fi, mobile data, bluetooth and ringer sound during specific time periods.
Basic Features
Schedule daily / weekly time periods with enabled or disabled network radios and ringer sound.
Interval Connection for extended battery life and reduced mobile data consumption during any of the configured time periods. 'Interval Connection' turns off Wi-Fi and/or mobile data when the screen is off and only re-connects for a short while at specific intervals to fetch messages. The radios are also turned on when you unlock the device.
Maintain full control by delaying, skipping or manually activating / deactivating a scheduled period.
Advanced Features
Switch-off alert. Before the network radio is switched off you are warned by a notification with the option to delay or skip the switch off - or check the option for automatic delay when the device is in use.
Manually activate / deactivate the configured profiles at any time, or stop interval connection for the currently active profile.
Skip the next occurrence of a specific scheduled profile. The next time the time period starts the profile will not be activated. If the profile is already active it will not be de-activated.
Keep Wi-Fi connected. Suspend interval connection / disconnection when connected to a Wi-Fi hot-spot (e.g. at home). Being connected to a Wi-Fi consumes much less energy than searching for hot spots.