From 0c6b3a1636d2cca3e4d98337382995ed29bc90fa Mon Sep 17 00:00:00 2001
From: Jun-ichiro itojun Hagino <itojun@cvs.openbsd.org>
Date: Wed, 11 Sep 2002 10:27:22 +0000
Subject: document TIMEZONE.

---
 share/man/man4/options.4 | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'share')

diff --git a/share/man/man4/options.4 b/share/man/man4/options.4
index 33f20dddcf3..89e6568cecf 100644
--- a/share/man/man4/options.4
+++ b/share/man/man4/options.4
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: options.4,v 1.107 2002/08/24 17:21:44 matthieu Exp $
+.\"	$OpenBSD: options.4,v 1.108 2002/09/11 10:27:21 itojun Exp $
 .\"	$NetBSD: options.4,v 1.21 1997/06/25 03:13:00 thorpej Exp $
 .\"
 .\" Copyright (c) 1998 Theo de Raadt
@@ -1055,6 +1055,21 @@ status can still be obtained using
 .Xr apm 8
 and/or
 .Xr apmd 8 .
+.It Cd option \&"TIMEZONE=value\&"
+.Ar value
+indicates the timezone offset of hardware realtime clock device, in minutes,
+from UTC.
+It is useful when hardware realtime clock device is configured with local time,
+when you dual-boot
+.Ox
+with other operating systems on a single machine.
+For instance, if hardware realtime clock is set to Tokyo time,
+.Ar value
+should be
+.Li \&-540
+as Tokyo local time is 9 hours ahead of UTC.
+Doublequote is needed when specifying a negative
+.Ar value .
 .El
 .\" The following requests should be uncommented and used where appropriate.
 .\" .Sh FILES
-- 
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