For the scientific world, the NIST, National Institute of Standards and Technology, is a benchmark that sets the guidelines and standards that must be followed in technological advances.
If you consider yourself an obsessive user of accuracy and precision then TimeSync is your program, because it allows you to automatically adjust the computer clock to the current time of the NIST server, yes, adapting to the regional configuration of each zone.
If the main server fails, TimeSync has another series of alternative servers, so you always have the clock time of your computer fully set.
You can free download TimeSync 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.