https://groups.google.com/g/comp.protocols.time.ntp/c/XCqHTyBgBOU
https://groups.google.com/g/comp.protocols.time.ntp/c/VwZNYYb6Ju8
https://groups.google.com/g/comp.protocols.time.ntp/c/Sr2UOg-nEJM
https://groups.google.com/g/comp.protocols.time.ntp/c/H0MY47riIew