How to Schedule Auto Shutdown on Windows, macOS, and Linux

Scheduled automatic shutdowns can save energy, protect hardware, and ensure updates or long tasks finish before powering off. Below are step-by-step instructions for Windows, macOS, and common Linux distributions (GNOME/Ubuntu and command-line), plus tips to avoid data loss.

Windows (Windows 10 / 11)

Use Task Scheduler (recommended)
- Press Start, type “Task Scheduler,” and open it.
- In the right pane, click Create Basic Task….
- Name it (e.g., “Auto Shutdown”) and click Next.
- Choose a trigger: Daily, Weekly, One time, or When I log on. Click Next and set the schedule.
- For Action, select Start a program and click Next.
- In Program/script, enter:
```
Code
shutdown 
```
  In Add arguments (optional), enter:
```
Code
/s /f /t 0 
```
  - /s = shutdown, /f = force close apps, /t 0 = no delay. Omit /f if you want apps to prompt to save.
- Click Next, review, and finish.
Use Command Prompt / Run (quick one-off)
- Open Run (Win+R) or Command Prompt and type:
```
Code
shutdown /s /t 3600 
```
  This schedules shutdown in 3600 seconds (1 hour). Use /a to abort.

Use PowerShell

One-liner for scheduled task creation (example: daily 11:00 PM):

Code
\(Action=New-ScheduledTaskAction -Execute 'shutdown.exe' -Argument '/s /t 0'; \)Trigger=New-ScheduledTaskTrigger -Daily -At 23:00; Register-ScheduledTask -TaskName ‘AutoShutdown’ -Action \(Action -Trigger \)Trigger

macOS

Use System Settings (macOS Ventura and later) or Energy Saver (older)
- Ventura+: Open System Settings → Battery → Schedule (or search “Schedule”).
- Click Shutdown and set time and days.
- Older macOS: System Preferences → Energy Saver → Schedule → set shutdown.

Use Terminal (pmset)

Schedule a one-time shutdown at a specific date/time:

Code
sudo pmset schedule shutdown “02/05/2026 23:00:00”

Recurring shutdown (every day at 23:00):

Code
sudo pmset repeat shutdown MTWRFSU 23:00:00

To cancel scheduled events:

Code
sudo pmset schedule cancel

Note: Apps with unsaved work may prevent clean shutdown; save before scheduled times.

Linux (Ubuntu/GNOME and general)

GNOME (Settings) — GUI (may vary by distro)
- Open Settings → Power and look for Automatic suspend or Power Off scheduling. Not all desktop environments include a shutdown scheduler.
Using systemd (recommended for modern distros)
- Schedule a one-time shutdown:
```
Code
sudo systemctl poweroff –no-wall –timestamp=2026-02-05T23:00:00 
```
  (If –timestamp unsupported, use at or shutdown command below.)
- Use systemd timers for recurring tasks (advanced).
Using shutdown / at / cron
- One-time shutdown after delay (e.g., 1 hour):
```
Code
sudo shutdown -h +60 
```
- Schedule shutdown at specific time (e.g., 23:00 today):
```
Code
sudo shutdown -h 23:00 
```
- Use at for a single future job:
```
Code
echo “sudo shutdown -h now” | at 23:00 
```
- Use cron for recurring schedules (edit root crontab: sudo crontab -e):
```
Code
0 23/sbin/shutdown -h now 
```

Tips and cautions

Save work and notify other users before enforcing forced shutdowns.
Use non-forcing options first to allow apps to prompt to save.
Test scheduled tasks with a short delay before relying on them.
For laptops, ensure AC power or sufficient battery for shutdown procedures.
To cancel:
- Windows: shutdown /a
- macOS: sudo pmset schedule cancel
- Linux: sudo shutdown -c (or kill scheduled at job)

Quick reference table

Platform	GUI option	Command example	Cancel command
Windows	Task Scheduler	shutdown /s /t 3600	shutdown /a
macOS	System Settings → Schedule	sudo pmset schedule shutdown “02/05/2026 23:00:00”	sudo pmset schedule cancel
Linux	Settings (varies) / cron	sudo shutdown -h 23:00	sudo shutdown -c

If you want, tell me which OS and schedule (one-time or recurring) and I’ll provide an exact command or step sequence tailored to your setup.

How to Schedule Auto Shutdown on Windows, macOS, and Linux