How to Show Seconds on the Clock in Windows 10 and Windows 11
Taskbar Time with Seconds

Can You Show Seconds on the Windows Taskbar Clock?

Yes. Windows can display seconds in the taskbar clock, but the method depends on the version of Windows you use. In Windows 11, recent builds include a graphical option in the Settings app. In Windows 10, the most reliable method is to enable a Registry value named ShowSecondsInSystemClock.

After enabling the option, the clock in the notification area changes from a standard minute-based display to a live display that updates every second.

How to Enable Seconds on the Clock in Windows 11 Using Settings

On modern Windows 11 builds, the easiest way to show seconds is through the Settings app. This method is safe, reversible, and does not require editing the Registry manually.

1. Press Win + I to open Settings.
2. Go to Personalization.
3. Open Taskbar.
4. Expand Taskbar behaviors.
5. Enable Show seconds in system tray clock. Windows may display the note uses more power.
6. Look at the right side of the taskbar. The clock should now show seconds.

On some newer Windows 11 builds, Microsoft may place the same option under the date and time page instead of the taskbar page. If you do not see it in Taskbar settings, check this path:

How to Show Seconds on the Windows 10 Taskbar Clock Using Registry Editor

Windows 10 does not usually provide a simple Settings checkbox for seconds in the taskbar clock. Instead, you can enable seconds by creating or changing a Registry value in the current user profile.

1. Press Win + R.
2. Type regedit and press Enter.
3. Confirm the User Account Control prompt if it appears.
4. Go to this Registry path:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced

5. Right-click an empty area in the right pane.
6. Select New → DWORD (32-bit) Value.
7. Name the value exactly:

ShowSecondsInSystemClock

8. Double-click ShowSecondsInSystemClock.
9. Set Value data to 1.
10. Click OK.
11. Restart Windows Explorer or restart the computer.

After Explorer restarts, the Windows 10 taskbar clock should display seconds.

How to Enable Seconds on the Windows Clock with PowerShell

If you prefer a faster method, PowerShell can create the required Registry value automatically. This works for Windows 10 and can also help on Windows 11 when the graphical option is unavailable.

1. Right-click Start.
2. Select Terminal, Windows PowerShell, or Windows Terminal.
3. Paste the command below and press Enter:

Set-ItemProperty -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" -Name "ShowSecondsInSystemClock" -Type DWord -Value 1

Then restart Windows Explorer with this command:

Stop-Process -Name explorer -Force

Explorer will close and reopen automatically. If it does not reopen, press Ctrl + Shift + Esc, open Task Manager, choose Run new task, type explorer.exe, and press Enter.

How to Turn on Seconds in the Taskbar Clock with Command Prompt

You can also use Command Prompt and the reg add command. This is useful for scripts, remote troubleshooting, or users who prefer classic Windows commands.

1. Open the Start menu.
2. Type cmd.
3. Open Command Prompt. Administrator rights are usually not required because the setting is stored under HKEY_CURRENT_USER.
4. Run this command:

reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v ShowSecondsInSystemClock /t REG_DWORD /d 1 /f

Restart Explorer with this command:

taskkill /f /im explorer.exe & start explorer.exe

Restart Windows Explorer to Apply the Taskbar Clock Seconds Setting

In many cases, the seconds setting appears only after the taskbar refreshes. The quickest way to refresh the taskbar is to restart the Windows Explorer process.

Restart Explorer from Task Manager

1. Press Ctrl + Shift + Esc to open Task Manager.
2. If Task Manager opens in compact mode, click More details.
3. Find Windows Explorer in the process list.
4. Select it and click Restart.

Restart the PC Instead

If you are not comfortable restarting Explorer manually, simply restart the computer. A full restart reloads the taskbar and applies the setting.

How to Remove Seconds from the Windows Taskbar Clock

If you decide that seconds are distracting or unnecessary, you can disable them at any time.

Windows 11 Settings Method

1. Open Settings.
2. Go to Personalization → Taskbar → Taskbar behaviors, or check Time & language → Date & time if the option has moved on your build.
3. Turn off Show seconds in system tray clock.

Registry Method

Set the value to 0 or delete ShowSecondsInSystemClock from this path:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced

PowerShell command to disable seconds:

Set-ItemProperty -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" -Name "ShowSecondsInSystemClock" -Type DWord -Value 0

After changing the value, restart Windows Explorer or restart the computer.

Seconds Do Not Appear on the Windows Clock — Troubleshooting

If seconds are still missing after you enable the setting, check the common causes below.

Check the Value with PowerShell

You can verify the current value with this command:

Get-ItemProperty -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" -Name "ShowSecondsInSystemClock"

If the value is 1, seconds should be enabled. If it is 0, seconds are disabled. If the value does not exist, create it again using one of the methods above.

Does Showing Seconds on the Windows Clock Use More Battery?

Windows 11 may show a warning that displaying seconds in the system tray clock uses more power. The reason is simple: a clock with seconds must update every second, while the default clock updates much less often. On desktops, this usually does not matter. On laptops and tablets, the difference can be more relevant when you are trying to maximize battery life.

For most users, enabling seconds is a convenience preference. It is especially useful for troubleshooting, watching logs, testing scheduled tasks, timing scripts, recording tutorials, or comparing exact timestamps.

FAQ: Showing Seconds on the Windows 10 and Windows 11 Clock

Can I show seconds on the lock screen clock?

The methods in this guide apply to the taskbar/system tray clock after signing in. They do not add seconds to the lock screen clock.

Does this change the date and time format everywhere?

No. It only changes the taskbar clock display. Regional formats, file timestamps, time zone settings, and application-specific time displays remain separate.

Do I need third-party software?

No. Windows 11 includes a built-in option on supported builds, and Windows 10 can use the Registry or command-line methods described above.

Will this affect all users on the PC?

No. The Registry path uses HKEY_CURRENT_USER, so the setting applies only to the current user account. Other users can enable or disable it separately.

Why is the option missing in Windows 11 Settings?

Your Windows 11 build may be older, or Microsoft may have moved the option to a different Settings page. Check both Taskbar behaviors and Date & time, then install Windows updates if necessary.

Conclusion: The Best Way to Enable Seconds on the Windows Clock

The fastest method depends on your Windows version. In Windows 11, start with the Settings app and look for Show seconds in system tray clock. In Windows 10, use the ShowSecondsInSystemClock Registry value or the PowerShell command for the same result.

If the change does not appear immediately, restart Windows Explorer or reboot the computer. Once enabled, the taskbar clock will show hours, minutes, and seconds directly in the system tray.