Turn Me On 4 Free WiFi Manager

In this free ad-supported version, you can create up to three schedules, one for the default settings you'd like most of the time, and up to two more for events in your life (meetings, appointments etc) or certain periods of the day.

Schedules can repeat on specific days of the week at certain times or (optionally) expire when set for a specific date/range (between specific times).

For example, you can set up a schedule for 10:30PM to 7:00AM to dim the screen brightness, mute the sound, and disable Wi-Fi & Data, for every day of the week. The schedule will never expire.

Each schedule has two profiles relating to it. A Screen-On profile and a Screen-Off profile.

A profile specifies what the brightness (in Screen-On only), ringer, and volume settings should be, and whether Wi-Fi and/or mobile data should be turned on or off.

Turn Me On won't change any settings if a schedule is not currently running. This is why you really need to set up two schedules (at the least), with one being the default schedule.

Turn Me On For Free is a limited version designed to convince you to upgrade. The full version has bluetooth control, configurable automatic reply messages to incoming SMS/text messages, and no limitation on the number of schedules that you can create. And no ads :)