Download of AtomiT 2.1 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This free program was originally created by FLAzH. Atomit.exe is the default file name to indicate the AtomiT installer. AtomiT lies within Office Tools, more precisely Timekeeping. We recommend checking the downloaded files with any free antivirus. The most popular versions of the software are 2.1, 2.0 and 1.1.
From the developer:
AtomiT is a Atomic time software for your Personal Computer
DAYTIME, the daytime protocol (RFC-867). The time server is listening on TCP/UDP port 13 and sends an ASCII string (one line, no format defined).
The time server is listening on UDP port 123. SNTP formats are compatible to the NTP protocol specification, using a simplified access strategy for servers and clients.
You may want to check out more software, such as iTimeSync, Chronice or e-Todo, which might be related to AtomiT.