September 2000
Beginner
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/usr/sbin/ntpdate [-bdosu][-a key#][-e authdelay][-k keyfile][-m] [-o version][-p samples][-t timeout][-w] server...
Use the ntpdate command to set the local date and time. To determine the correct time, ntpdate polls the Network Time Protocol (NTP) servers on the hosts given as arguments. You must run this command as root on the local host. The command obtains a number of samples from each of the servers and applies the standard NTP clock filter and selection algorithms to select the best of these.
The ntpdate command declines to set the date if an NTP server daemon like xntpd(1M) is running on the same host. You can run ntpdate regularly from ...