jenkinsci/jenkins — pull request #845 by oldelvet (2013-07-11 14:13:54+00:00)
Title: [FIXED JENKINS-18671] Clock Difference broken on Manage Nodes page

System.nanos() returns a monotonically increasing value that is not related
to wallclock time. Use System.currentTimeMillis() instead.

Tested on both Linux and Windows slaves. All now report "sensible" clock differences of a few minutes/seconds.