RIP the man who was the absolute incarnation of XKCD's "one random dude holding up the entire internet". You may never have heard of David Mills, but your entire goddamn world depends on what he did.

https://en.m.wikipedia.org/wiki/David_L._Mills

David L. Mills - Wikipedia

@memory This brings back memories of troubleshooting AD login issues and realizing the DC wasn't properly updating time and having to manually set NTP servers via w32tm.exe.
@jseggers @memory I’m here to offer the sad news that AD login issues due to time skew were still a problem in 2023. (And are probably still a problem in 2024, but we haven’t had a support ticket about it this year so far, possibly because I put a detailed explanation of why it’s AD’s fault in our support portal knowledge base.)
@mathew @memory Some things never change.