Ralf Mardorf <ralf.mardorf@alice-dsl.net> wrote: > Does "jump the clock" mean that the time is synced hard, ignoring > timestamps? Yes. Ntpdate is as likely to set the clock back as it is to put it forward. Your applications might be able to cope with a second being only 800ms long, but databases and the like get very upset if they "know" the time's 18:01:56 and suddenly it's now only 18:01:55 (for example). Chris