SocketWatch

From Robomagic Corp.:

Keep your PC clock accurate with the ultimate SNTP client for Windows. Uses the time zone, daytime, and networking features of Windows. SocketWatch will keep your time synchronized over the Internet without even needing to dial into your Internet Service Provider. If you periodically dial in for surfing, checking your mail etc., SocketWatch will connect to the time server and set the PC clock in the background.

Feature: Smart Server Search: SocketWatch will go through its list of 185 public access time servers and find the one that will give you the quickest and most accurate time synchronization.

SocketWatch will keep a status of all these time servers, and at any given time, will use the one with the best performance for your location. SocketWatch also accesses a number of servers at any given time, and uses the one with the best response. This makes it nearly impossible for a downed or busy server to affect the performance of SocketWatch.

Feature: Smart Network Connect Detection: No more need to change settings when going from one type of Internet connection to the other. Use a modem, DSL, or connect via a LAN; SocketWatch will detect your connection and synchronize your time as soon as you connect.

Feature: Wrist-watch synchronizer: Using audio-visual cues, assists you to synchronize your "plain old" watches and clocks to the exact time.