What is AtomicAlarmClock.exe?

The genuine AtomicAlarmClock.exe file is a software component of Atomic Alarm Clock by Drive Software Company.
AtomicAlarmClock.exe is an executable file that runs the Atomic Alarm Clock, an application designed to replace the standard Microsoft Windows clock. This file runs the Clock Tray Skins feature meant to change the appearance of the system tray clock. This file is not a critical Windows component and should be removed if known to cause problems. Atomic Alarm Clock provides users with additional utilities not available in any versions of Microsoft Windows. The program features an alarm clock, customizable skins for the Windows clock, an atomic-time synchronizer that syncs the clock with global standard time, hourly chimes and more. Drive Software Company is a shareware software development company that designs and distributes utility software for the Windows platform. The company sells programs exclusively through the Internet. It was founded in 2002.

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 AtomicAlarmClock.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.

Click to Run a Free Scan for AtomicAlarmClock.exe related errors

AtomicAlarmClock.exe file information

Windows Task Manager with AtomicAlarmClock
AtomicAlarmClock.exe process in Windows Task Manager

The process known as Atomic Alarm Clock (version 5.87, 6.262, 6.12, 5.61, 5.85, 5.91, 5.9) belongs to software unknown by Drive Software Company (

Description: AtomicAlarmClock.exe is not essential for the Windows OS and causes relatively few problems. AtomicAlarmClock.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 1,742,848 bytes (10% of all occurrences), 5,320,192 bytes and 36 more variants. 
There is no file information. The program has no visible window. The program starts upon Windows startup (see Registry key: Run, MACHINE\User Shell Folders, DEFAULT\Run, User Shell Folders). AtomicAlarmClock.exe is not a Windows system file. The application can be uninstalled in the Control Panel. AtomicAlarmClock.exe is able to record keyboard and mouse inputs and connect to the Internet. Therefore the technical security rating is 60% dangerous, however you should also read the user reviews.

Uninstalling this variant: If there are any problems with AtomicAlarmClock.exe, you can do the following:

Recommended: Identify AtomicAlarmClock.exe related errors

Important: Some malware camouflages itself as AtomicAlarmClock.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder, for example Win32:Rootkit-gen [Rtk] or Win32:Trojan-gen (detected by Avast), and Mal/Packer (detected by Sophos). Therefore, you should check the AtomicAlarmClock.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

Its just a system tray clock replacement, but im wondering why it would need to act like a server? Listening on port 4124, eh? Sounds a bit dodgy. It is a brilliant clock tho! (i'm assuming the open port is for the time synchronisation ability...)
  Andrew Beveridge   (further information)
It is your Atomic Alarm Clock and is nothing to worry about
�то в�еголиш ча�ы а не какой не воришка
it's just a better clock for windows, you can see the date and time just by looking at it. also you can set as many alarms as you like to go off and set them to go daily, weekly, monthly if you wish
  Mick0305   (further information)

Summary: Average user rating of AtomicAlarmClock.exe: based on 5 votes with 4 user comments. 4 users think AtomicAlarmClock.exe is essential for Windows or an installed application. One user thinks it's probably harmless.

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Best practices for resolving AtomicAlarmClock issues

A clean and tidy computer is the key requirement for avoiding problems with AtomicAlarmClock. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the AtomicAlarmClock.exe process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

AtomicAlarmClock.exe [all]