> Is there a package to do this? > > Normally the hardware clock is set during shutdown if one is running ntpd. > But if a long-running server shuts down unexpectedly, this isn't done, and > the hardware clock might be off by a lot when it comes back up. So setting > it periodically from a cron job could be useful. > > What do others do? Adding a one liner to /etc/cron.daily that invokes > /etc/rc.d/init.d/ntpd would do it but it seems heavyweight to restart ntpd. > Alas, the script doesn't export just the sync_hwclock function. I add this to /etc/rc.local /usr/sbin/ntpdate us.pool.ntp.org Sets the clock on start up. Might run it by cron once a month or so too.