Simple WiFi Timer is a free timer app for Android devices that lets you turn ON/OFF your WiFi and Bluetooth connection automatically at the time you specified. The application will save the battery and help you keep your device's battery in good condition. It is recommended for those who use their device for various purposes, such as attending a class or meeting, playing a game, or watching a movie. 

To start using Simple WiFi Timer, open the application and follow the instructions that will be displayed on the screen. After you finish setting up the application, you can now turn ON/OFF your WiFi and Bluetooth connection automatically at the time you specified.