Your Mac can be made to power on and shut down on a custom schedule.
Having your computer start up 15 minutes or so before you get up from bed in the morning is a great way to have your emails, photos, messages, calendars and other personal information items updated and refreshed before you even touch the keyboard.
This helps reduce the time necessary to wait to use the machine. You may use this feature to get your computer to start up before you get to the office or arrive home.
Conversely, you may want to set your Mac to shut down at a specified time rather than sleep in order to save power. For instance, my custom power schedule is set to automatically shuts down my MacBook Air about half an hour after I finish working on workdays.
You can use the scheduling feature in your Energy Saver settings to set a time for your Mac to automatically start up, wake, sleep, restart or shut down.
This step-by-step tutorial will teach you how and why to set up a custom power schedule in macOS and when it might be more convenient to put your Mac to sleep instead.
How to use power scheduling in macOS
You don’t need any specific macOS version in order to use the power scheduling feature because it’s built into virtually every version of Apple’s desktop operating system.
1) Open System Preferences from the Dock, the Applications folder, the Apple menu or Spotlight.
2) Click the Energy Saver icon.
3) Click the Schedule button at the bottom of the window.
4) Now create your custom power schedule:
- Start up or wake—Tick the top checkbox and choose a day or group of days from the pop-up menu, then enter a time.
- Sleep, restart or shut down—Tick the bottom checkbox and select Sleep, Restart or Shut Down from the pop-up menu on the left, then choose a day or group of days from the pop-up menu on the right and enter a time.
5) Click the OK button to keep the changes or Cancel to abort.
Set a custom time for your Mac to automatically start up, wake, sleep, restart or shut down
6) Close out the System Preferences window.
In order to shut down automatically, you must of course be logged in to your Mac.
Furthermore, the computer needs to be awake at the time that it’s scheduled to shut down and remain awake for at least ten minutes past that time.
If your computer happens to be sleeping at its scheduled shutdown time, it will continue sleeping instead of shutting down. Similarly, if you’re logged out (i.e. you’re at macOS’s Login screen), your Mac also won’t shut down.
If your Mac is set to go to sleep after less than 15 minutes of inactivity, it might go back to sleep before macOS has finished shutting it down. To ensure the system shuts down even when it’s sleeping, set it to start up or wake 5 minutes before your scheduled shutdown time.
Also, having any documents open with unsaved changes may prevent a Mac from going to sleep or shut down when scheduled. And lastly, if you’re going to make your Mac start up on a schedule, be sure that it’s connected to a power adapter.
Shutting down vs. sleeping
While some people will find it more convenient to just put their Mac to sleep when it’s not in use, shutting it down at the end of the day not only saves more power than the sleep mode, but also give it a chance to install pending updates that require a restart, flush the caches and perform other housekeeping operations as part of the general maintenance routine.
As I mentioned earlier, you may want to use power scheduling in macOS if you want to be sure your Mac turns off when you aren’t working and turns on before you come to work.
Have you tried power scheduling on your Mac yet? If so, how did you like this feature? Do share your top uses for power scheduling in macOS with us in the comments down below.
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