<HTML ><HEAD ><TITLE >Keeping Time</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.63 "><LINK REL="HOME" TITLE="The Linux System Administrator's Guide" HREF="index.html"><LINK REL="PREVIOUS" TITLE="Compressed backups" HREF="x2717.html"><LINK REL="NEXT" TITLE="Time zones" HREF="x2738.html"></HEAD ><BODY CLASS="CHAPTER" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >The Linux System Administrator's Guide: Version 0.7</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="x2717.html" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="x2738.html" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="CHAPTER" ><H1 ><A NAME="AEN2732" >Chapter 13. Keeping Time</A ></H1 ><DIV CLASS="TOC" ><DL ><DT ><B >Table of Contents</B ></DT ><DT >13.1. <A HREF="x2738.html" >Time zones</A ></DT ><DT >13.2. <A HREF="x2751.html" >The hardware and software clocks</A ></DT ><DT >13.3. <A HREF="x2757.html" >Showing and setting time</A ></DT ><DT >13.4. <A HREF="x2804.html" >When the clock is wrong</A ></DT ></DL ></DIV ><A NAME="AEN2734" ></A ><BLOCKQUOTE CLASS="BLOCKQUOTE" ><P ><SPAN CLASS="QUOTE" >"Time is an illusion. Lunchtime double so."</SPAN > (Douglas Adams.)</P ></BLOCKQUOTE ><P > This chapter explains how a Linux system keeps time, and what you need to do to avoid causing trouble. Usually, you don't need to do anything about time, but it is good to understand it.</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="x2717.html" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="x2738.html" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Compressed backups</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Time zones</TD ></TR ></TABLE ></DIV ></BODY ></HTML >