Arch Linux

orschiro

Member

Registered: 2009-06-04

Posts: 2,136

Website

Correct clock time adjustment

Hello guys,

yesterday I set my clock to the right time via the following commands:

date -s 00:00

hwclock --systohc

Today I recognized that there is already a difference of three minutes to the right time. I know that isn't much but nevertheless I want to know the reason for that.

Is that normal?

Thank you in advance.

orschiro

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@orschiro

thisoldman

Member

From: Pittsburgh

Registered: 2009-04-25

Posts: 1,172

Re: Correct clock time adjustment

Hardware clocks are not accurate in computers. They run from a battery when the computer is not connected to an outside source.

You can use openntpd or ntp to synchronize your hardware clock to the internet. ArchWiki article: http://wiki.archlinux.org/index.php/Ntpd