From 12fe76b6b4aef57f39484e7cd4ece82d516a283d Mon Sep 17 00:00:00 2001
From: Theo de Raadt <deraadt@cvs.openbsd.org>
Date: Tue, 10 Feb 2015 13:10:28 +0000
Subject: Document that RFC 5905 (ie. NTP protocol) has a limit which will be
 hit before Y2038.

---
 usr.sbin/rdate/rdate.8 | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/usr.sbin/rdate/rdate.8 b/usr.sbin/rdate/rdate.8
index bf990d920a8..3dfe39aaeee 100644
--- a/usr.sbin/rdate/rdate.8
+++ b/usr.sbin/rdate/rdate.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: rdate.8,v 1.36 2013/04/19 19:14:46 millert Exp $
+.\"	$OpenBSD: rdate.8,v 1.37 2015/02/10 13:10:27 deraadt Exp $
 .\"	$NetBSD: rdate.8,v 1.4 1996/04/08 20:55:17 jtc Exp $
 .\"
 .\" Copyright (c) 1994 Christos Zoulas
@@ -29,7 +29,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: April 19 2013 $
+.Dd $Mdocdate: February 10 2015 $
 .Dt RDATE 8
 .Os
 .Sh NAME
@@ -73,6 +73,8 @@ which does not correctly account for leap seconds.
 .It Fl n
 Use SNTP (RFC 5905) instead of the RFC 868 time protocol.
 This is the default.
+This protocol counts 32 bits of seconds from January 1, 1900
+and will rollover in March 2036.
 .It Fl o
 Use an RFC 868 TCP protocol server instead of SNTP.
 This protocol is obsolete as it is not capable of representing
-- 
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