1)   Atom Time Synchronizer 3.7.9
AtomTime Synchronizer is a useful and handy utility to keep your PC clock accurate. It can periodically check and synchronize your computer time with a NIST atomic time server, or synchronize time between computers, and can also act as a time server

 2)   PresenTense Time Client NT 3.8
PresenTense is a network time client for Windows NT/2000/XP/2003. It synchronizes your PC system clock to a network time server. Supports e-mail notification, redundancy and and can be remotely managed. Now supports NTP4.0 and NINA.