rdate [-46acnpsuv ] [-o port ] host
rdate displays and sets the local date and time from the host name or address given as the argument. The time source may be an RFC 868 TCP protocol server, which is usually implemented as a built-in service of inetd(8), or an RFC 2030 protocol SNTP/NTP server. By default, rdate uses the RFC 868 TCP protocol.
The options are as follows:
To get the legal time in Germany, set the /etc/localtime symlink to /usr/share/zoneinfo/right/Europe/Berlin and issue the following command:
The command of course assumes you have a working internet connection and DNS set up to connect to the server at Physikalisch-Technische Bundesanstalt in Braunschweig, Germany.
To gradually adjust time once an hour after the first Qq step adjustment, put the following line into root's crontab:
To to set the time through an ssh tunnel, use something like so:
date(1), adjtime(2), inetd(8), ntpd(8), timed(8)
This manual page was written by An Christos Zoulas. It was changed by An Anibal Monsalve Salazar for the Debian Project.