<div>
You are probably best having a look at this for some background and further info: <br />
<a href="http://tldp.org/HOWTO/Clock-2.html" rel="ugc">http://tldp.org/HOWTO/Clock-2.html</a><br />
<br />
If it is a server and the time is critical you can get atomic clock cards or radio clock cards to go in the machine to provide a more accurate time. e.g. something like:<br />
<a href="http://www.atomictimeclock.com/clockcard.php" rel="ugc">http://www.atomictimeclock.com/clockcard.php</a>
</div>


You are probably best having a look at this for some background and further info:
http://tldp.org/HOWTO/Clock-2.html [http://tldp.org/HOWTO/Clock-2.html]

If it is a server and the time is critical you can get atomic clock cards or radio clock cards to go in the machine to provide a more accurate time. e.g. something like:
http://www.atomictimeclock.com/clockcard.php [http://www.atomictimeclock.com/clockcard.php]

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do you whant to stop time when network it's off or to fix time ? 
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do you whant to stop time when network it's off or to fix time ?

<div>
i just want to keep the time as accurate as possible i.e. as if it was connected to a network . I've noticed that the time can drift by up to 1 hour after a week when disconnected from a network.
</div>


i just want to keep the time as accurate as possible i.e. as if it was connected to a network . I've noticed that the time can drift by up to 1 hour after a week when disconnected from a network.

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<div class="content wysiwyg-content">
i am currently using the following commands to set the clock date &amp;&nbsp;time using a network connection on a linux pc:<br />
<br />
# dpkg-reconfigure tzdata<br />
# ntpdate-debian<br />
# /sbin/hwclock –systohc<br />
<br />
The pc will be will not be connected to a network for a long period of time. Has anyone got suggestion on how to stop /slow the time drift in the PC clock time once the PC has been disconnected from the network?<br />
<br />

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</div>


i am currently using the following commands to set the clock date & time using a network connection on a linux pc:

# dpkg-reconfigure tzdata
# ntpdate-debian
# /sbin/hwclock –systohc

The pc will be will not be connected to a network for a long period of time. Has anyone got suggestion on how to stop /slow the time drift in the PC clock time once the PC has been disconnected from the network?



increase accuracy of the hwclock linux ubuntu pc when not connected to network

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.

Linux

A Linux distribution is an operating system made as a software collection based on the Linux kernel and, often, on a package management system and are available for a variety of systems. A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System), a window manager, and a desktop environment. Most Linux systems are open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Over three hundred distributions are in active development, including commercially backed distributions (such as Fedora, openSUSE and Ubuntu) and community-driven distributions (such as Debian, Slackware, Gentoo and Arch Linux).