This tutorial will walk you through the steps to set your Energy Saver schedule so your computer will be on when you want it and off when you’re done for the day.
Open System Preferences

1. Click the Apple Menu and click System Preferences…
Open Energy Saver Preferences

2. Click Energy Saver
Open the Schedule

3. Click the Schedule… button
Set the Schedule

Once the schedule panel loads, choose your Start Up/Wake and Sleep/Shut Down settings. Use the drop downs to control schedules for weekends or weekdays only or specific days. Once your selections have been made, click the OK button.
Quit System Preferences

4. Quit system preferences and enjoy your new settings.