[CentOS] leap second and Centos

Unix and ntp handle leap seconds a bit differently.
Unix time increases during the leap second and drops back a second after.
Ntp freezes time during the leap second.
OS kernels may do either or neither.

-- 
Michael   hennebry at web.cs.ndsu.NoDak.edu
"SCSI is NOT magic. There are *fundamental technical
reasons* why it is necessary to sacrifice a young
goat to your SCSI chain now and then."   --   John Woods