AboutTime - 4.8 

Synchronize you computer -- or your entire network! AboutTime is both a time client and server -- it will acquire a precise time value from the Internet, set your computer's clock, and it will act as a time server as well -- it will provide time signals to your local network using four time protocols.

DateTime - 0.9 BETA 

Program for synchronization of date and time on local network. Any computer in network can be a server. On Windows NT server can be started as service.

HiClock - 1.81 

HiClock gives you an easy and thorough way to synchronize your sysclock to the exact time using the Internet. It queries one of the National Institute of Standards and Technology timeservers, which then returns the correct standard time.

TimeClient - 2.1.0 

TimeClient connects to remote servers on port 13 and updates the local system clock. Remote servers can either be UNIX systems or they can be NT systems running TimeUp Time Server. Simple interface, easy to use.

WorldClock - 1.32 

WorldClock will check your PC's time against an Internet time server for accuracy. Supports both SNTP and Time protocols.

WorldTime - 5.3.0.606 

WorldTime lets you have from 1 to 10 configurable clocks, each with its own time zone, Daylight savings time rule, and description in a 12 or 24 hour display that minimizes to the system tray.

YATS32 - 7.5 Build 7 

This utility lets you automatically set your system clock to any of a number of time services available via the Internet or your corporate intranet. It supports multiple servers and time service protocols. It will even poll a list of different servers until it gets a valid time stamp. Included is an Internet Time Server Directory dialogue allowing direct selection from extensive list of national and international servers. Several enhancements have been made in this update. Now can run as a Windows NT service.