rdate(1)

NAME

rdate - get the time via the network

rdate [-p] [-s] [-u] [-l] [-t sec] [host...]

rdate connects to an RFC 868 time server over a TCP/IP network, printing the returned time and/or setting the system clock.
OPTIONS: -p Print the time returned by the remote machine.; -s Set the system time to the returned time.; -u Use UDP instead of TCP as the transport.; -l Use syslog to output errors (cron.warning) and output
(cron.info).; -t Set timeout in seconds for every attempt to retreive date.

2004-03-16 Johan Nilsson <joh-nils@dsv.su.se>: Timeout support added.
2002-11-06 Elliot Lee <sopwith@redhat.com>: Patch from Tomek Orzechowski <orzech@pld.org.pl> - alarm(10) to not wait forever for connections.
2001-05-23 Phil Knirsch <pknirsch@redhat.com>: Added UDP protocol support. Close the connection after message handling in conformance to RFC 868.
2002-03-07 Elliot Lee <sopwith@redhat.com>: Add syslog functionality.
2000-02-04 Elliot Lee <sopwith@redhat.com>: Wrote it (previous incarnation had license problems, all 200 lines of it).