Digital Clock 1.0.001

TimeTools NTP digital clock software is a freeware utility that runs on any Windows 98/NT/2000/XP/2003 workstation or server. It allows a client to synchronise time to a selected Atomic Clock synchronised NTP server.
The digital clock utility periodically polls the specified ntp server at periodic intervals specified by the user and optionally synchronises time to the time server.

Digital Clock Software and Windows Time Synchronisation Service.

TimeTools digital clock software and the Windows Time Synchronisation service (Windows Time) cannot co-exist on the same system, since they both attemp to use UDP port 123 (NTP). You can disable the Windows Time service from the service manager to avoid this problem and rely on the digital clock software to synchronise time.

Operation with Windows XP SP2 Firewall

To operate digital clock on Windows XP SP2 or later, you must open the NTP port (Port 123) in the Windows XP firewall. From the Firewall Control Panel add UDP port 123 in the exceptions tab.