--- a/date.rst	Tue Apr 21 12:19:58 2009 +0300
+++ b/date.rst	Tue May 05 17:15:57 2009 +0300
@@ -1,5 +1,22 @@
 -*- outline -*-
 
+* System timer and system time.
+
+** Windows.
+
+Windows assume that system timer display locale time.
+
+** Debian.
+
+UTC=no - system timer display locale time, UTC=yes - UTC time.
+
+  $ cat /etc/default/rcS
+  UTC=no
+or
+  UTC=yes
+
+If system dual boot with Windows you must set UTC=no.
+
 * Getting current date/time.
 
   $ date +"%Y-%m-%d %H:%M:%S"
@@ -20,7 +37,7 @@
 
   $ cat /etc/timezone
 
-* Get list of cupported timezone.
+* Get list of supported timezone.
 
   $ tzselect