Shutdown Timer

Your On-Screen Shutdown Timer

If you’ve ever wanted your computer to shut down, restart, sleep, or even lock itself after a certain amount of time, this tool makes it easy. Whether you’re heading to bed, leaving a download to finish, or just need a screen break, this browser-based shutdown timer lets you plan exactly what your device should do - and when.

Why You Might Want This Timer

Some folks use it to shut down their machines after updates. Others want to lock their computer during a lunch break. Maybe you’re prone to leaving your laptop running all night. This timer handles all of those situations by giving you two simple ways to schedule the next action:

• Countdown: Choose how many hours, minutes, and seconds from now you want the action to happen.
• Specific Time: Pick an exact time of day when your computer should do its thing.

It won’t run the shutdown for you - you'll still need to execute the system command yourself - but it gives you a clear, reliable countdown with a helpful reminder when it’s time.

How It Works, Step by Step

1. Choose What You Want the Computer to Do

From the dropdown menu, select your preferred action. Your options are:

• Shutdown
• Restart
• Hibernate
• Sleep
• Lock

2. Select Your Time Zone

This ensures all calculations line up with your local time. The default is UTC, but you can switch to anything from Eastern Time to Tokyo time. The timer adjusts automatically based on your selection.

3. Pick Your Timer Method

You’ve got two choices here:

• Countdown Timer: Enter how many hours, minutes, and seconds from now you want the action to trigger.
• Specific Time: Set a target time of day - like 11:00 PM - and the tool will calculate when that is based on your time zone.

4. Start the Timer

Click “Start Shutdown Timer.” Once it's running, the display shows you a live countdown, the scheduled action, the exact time it will happen, and the current status.

Extra Features That Make This Easier

Live Clock with Time Zone Support

The timer includes a live display of the current time, matched to your selected time zone. You can also toggle between 12-hour and 24-hour formats with one click.

Smart Color Coding

The countdown display changes color as the timer winds down - blue when there's plenty of time, yellow when you're under 10 minutes, orange at 5, and red when you're down to the final minute.

Default Settings to Save You Time

When the page loads, the countdown is already set to 30 minutes. If you prefer the specific time method, it pre-fills an hour ahead from the current time. You can adjust either as needed.

Instant Feedback When the Timer Ends

When your timer hits zero, the screen lights up with a big red “TIME UP!” alert, and you’ll get a browser pop-up telling you what action it's time to take. (Like shutting down your PC.)

Switching Timer Modes on the Fly

If you change your mind mid-setup, toggling between countdown and specific time is seamless. The input fields switch instantly to match the method you've selected.

Heads-Up for New Users

• This is a display-only tool - it won’t actually shut down your computer. You’ll need to run the command manually when the timer ends.
• Keep your browser tab open and active for accurate timing.
• If you're planning a specific time shutdown, make sure your time zone is correct to avoid surprises.
• Save your work before letting the timer run its course - especially for shutdowns and restarts.
• If your timer is active and you try to close the page, you'll get a warning first.

Let the Timer Watch the Clock So You Don’t Have To

Whether you’re automating your routine or just trying to keep yourself on schedule, this tool gives you a simple, no-frills way to track when your computer should power down, restart, or lock. With flexible time options, clear readouts, and built-in timezone smarts, it’s like having a quiet assistant who’s always right on time.