Thanks for catching that. You are right. Here is the source code: https://github.com/torvalds/linux/blob/master/fs/proc/uptime.c#L19-L21 https://github.com/torv

Thanks for catching that. You are right. Here is the source code: https://github.com/torvalds/linux/blob/master/fs/proc/uptime.c#L19-L21 https://github.com/torvalds/linux/blob/master/fs/proc/uptime... My source (first result in Google) was this link https://www.centos.org/docs/5/html/5.1/Deployment_Guide/s2-proc-uptime.html https://www.centos.org/docs/5/html/5.1/Deployment_Guide/s2-p... which looks like an older version of the documentation that does not have that last sentence.