What is timeserv.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the timeserv.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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Timeserv.exe file information

Windows Task Manager with timeserv
Timeserv.exe process in Windows Task Manager

The process known as Atomic Alarm Clock Time or Atomic Alarm Clock (version 5.91, 6.20) or Free Desktop Clock (version 3.0) belongs to software Atomic Alarm Clock or Free Desktop Clock by Drive Software Company (

Description: Timeserv.exe is not essential for the Windows OS and causes relatively few problems. Timeserv.exe is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\. Known file sizes on Windows 10/8/7/XP are 2,007,040 bytes (75% of all occurrences), 415,744 bytes or 2,062,336 bytes. 
The timeserv.exe file is a file with no information about its developer. The program has no visible window. The file is not a Windows core file. The application can be removed using the Control Panel's Add\Remove programs applet. It can change the behavior of other programs or manipulate other programs. Timeserv.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 54% dangerous, however you should also read the user reviews.

Uninstalling this variant: You have the option to do the following:
  1) uninstall the associated program (Start > Control Panel > Uninstall a Program > Atomic Alarm Clock or Free Desktop Clock)
  2) look for help on the website
  3) search for an update on the vendor’s website.

Recommended: Identify timeserv.exe related errors

Important: Some malware camouflages itself as timeserv.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the timeserv.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Die Datei stammt aus dem Windows-NT- Resource-Kit und ermöglicht die Syncronisation der Systemuhr über einen NTP Server. Die Anwendung kann als Dienst gestartet werden. Dazu gehört die Datei C:\winnt\timesrv.ini
  nanuk72   (further information)
Belongs to "Atomic Alarm Clock" by "Drive Software". It replaces the standard windows taskbar clock with a customizable one and is able to synchronize the clock to any NTP time server ("atomic clock") you specify. The timeserv.exe file is the one that does the synchronization. Killing the process in the taskmanager doesn't crash the clock, but it won't be able to automatically (AND manually) synchronize the time anymore. Just clicking the timeserv.exe in C:\Program Files\Atomic Alarm Clock does nothing at all. Needs a reboot.
  Patrik   (further information)

Summary: Average user rating of timeserv.exe: based on 3 votes with 2 user comments. 2 users think timeserv.exe is essential for Windows or an installed application. One user thinks it's probably harmless.

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Best practices for resolving timeserv issues

A clean and tidy computer is the key requirement for avoiding problems with timeserv. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the timeserv.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

timeserv.exe [all]