RDATE(8) — MAINTENANCE COMMANDS
NAME
rdate − set system date from a remote host
SYNOPSIS
/usr/ucb/rdate hostname
DESCRIPTION
Rdate sets the local date and time from the hostname given as argument. You must be super-user on the local system. Typically rdate can be inserted as part of your /etc/rc.local startup script.
SEE ALSO
BUGS
Could be modified to accept a list of hostnames and try each until a valid date returned. Better yet would be to write a real date server that accepted broadcast requests.
Version 1.1 of rdate is incompatible with version 1.0. rdate’s issued on 1.1 systems will not get the time from systems running 1.0.
Sun Release 1.1 — Last change: 7 March 1984