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may disguise itself using the same filename, especially if found in C:\Windows\System32 . Always ensure you download it directly from a trusted source like tf.nist.gov Downloading and Using the NIST Time Program
The tool connects directly to NIST servers (like time.nist.gov ), which are linked to cesium atomic clocks.
: Use File → Select Server to choose from various stratum-1 time servers.
Note: nistime32.exe is an older third-party Windows utility that syncs your PC clock with NIST (U.S. National Institute of Standards and Technology) time servers. This guide assumes you want a simple, practical walkthrough for downloading, installing, configuring, and troubleshooting it on a Windows PC.