.\"	$OpenBSD: rdate.8,v 1.6 1997/07/16 01:07:37 deraadt Exp $
.\"	$NetBSD: rdate.8,v 1.4 1996/04/08 20:55:17 jtc Exp $
.\"
.\" Copyright (c) 1994 Christos Zoulas
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"	This product includes software developed by Christos Zoulas.
.\" 4. The name of the author may not be used to endorse or promote products
.\"    derived from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\"
.Dd April 30, 1994
.Dt RDATE 8
.Os
.Sh NAME
.Nm rdate
.Nd set the system's date from a remote host
.Sh SYNOPSIS
.Nm rdate
.Op Fl psa
.Ar host 
.Sh DESCRIPTION
.Nm Rdate
displays and sets the local date and time from the
host name or address given as the argument. It uses the RFC868
protocol which is usually implemented as a built-in service of
.Xr inetd 8 .
.Pp
Available options:
.Pp
.Bl -tag -width indent
.It Fl p
Do not set, just print the remote time
.It Fl s
Do not print the time.
.It Fl a
Use the 
.Xr adjtime 2
call to gradually skew the local time to the
remote time rather than just hopping.
.Sh FILES
.Bl -tag -width /var/log/wtmp -compact
.It Pa /var/log/wtmp
A record of date resets and time changes.
.Sh SEE ALSO
.Xr inetd 8 ,
.Xr adjtime 2 ,
.Xr gettimeofday 2