AtomTime Pro is a Windows application which will connect to an atomic clock time server via the Internet and fetch the current atomic clock time value. It can then set your PC clock to the correct time.

iTimeSync synchronizes your computer clock with an internet time server which have very accurate clocks, generally synchronized by the harmonics of an atom. (Thus called an Atomic Clock.) iTimeSync is written in Assembly for maximum efficiency.

SP TimeSync is a multilingual program which lets you synchronize your computer's clock with any Internet atomic clock (time server). It uses a high precision network time protocol (NTP) which provides accuracy of several milliseconds.

WebTime is a small utility program that will synchronize your PC's internal clock with one of the several atomic clocks maintained by the United States National Institute of Standards and Technology.

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.

Time syncron with timserver ntp

High performance Windows time server supporting NTP and SNTP protocols. Installation automatically configures default time servers so you have an operational time server in 30 seconds. GPS clock drivers are included.

Atomic Clock synchronizing application with some useful options (skinned, synchronize periods, work as Time Server, import time servers list, etc)

This freeware Atomic Clock Sync utility will keep your local computer up-to-date with the exact current time from an atomic clock server.

Atomic PC Clock allows you to make the most of your time! By using Atomic PC Clock, you will not be late for important appointments. Atomic PC Clock's intuitive user interface is ideal for both the novice and expert PC user.