10.0
10.0-rc1
10.1
10.1-rc1
11.0
11.0-rc1
11.0-rc2
11.0-rc3
11.1
11.1-rc1
11.2
11.2-rc1
11.3
11.3-rc1
12.0
12.0-rc1
12.1
12.1-rc1
12.2
12.2-rc1
6.0
6.1
6.1.1
6.3
6.4
6.5
6.6
6.7
6.8
7.0
7.1
7.2
7.3
7.4
7.5
7.5-systemd
7.6
7.6-systemd
7.7
7.7-systemd
7.8
7.8-systemd
7.9
7.9-systemd
8.0
8.1
8.2
8.3
8.4
9.0
9.1
arm
bdubbs/gcc13
ml-11.0
multilib
renodr/libudev-from-systemd
s6-init
trunk
v3_3
v4_0
v4_1
v5_0
v5_1
v5_1_1
xry111/arm64
xry111/arm64-12.0
xry111/clfs-ng
xry111/lfs-next
xry111/loongarch
xry111/loongarch-12.0
xry111/loongarch-12.1
xry111/loongarch-12.2
xry111/mips64el
xry111/multilib
xry111/pip3
xry111/rust-wip-20221008
xry111/update-glibc
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1 | <sect1 id="ch07-setclock">
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2 | <title>Configuring the setclock script</title>
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3 | <?dbhtml filename="setclock.html" dir="chapter07"?>
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4 |
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5 |
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6 | <para>The setclock script is only for real use when the hardware clock (also
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7 | known as BIOS or CMOS clock) isn't set to GMT time. The recommended
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8 | setup is setting the hardware clock to GMT and having the time converted
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9 | to localtime using the /etc/localtime symbolic link. But if an
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10 | OS is run that doesn't understand a clock set to GMT (most notable are
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11 | Microsoft OS'es) you may want to set the clock to localtime so that
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12 | the time is properly displayed on those OS'es. This script will then
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13 | set the kernel time to the hardware clock without converting the time using
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14 | the /etc/localtime symlink.</para>
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15 |
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16 | <para>If you want to use this script on your system even if the
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17 | hardware clock is set to GMT, then the UTC variable below has to be
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18 | changed to the value of <emphasis>1</emphasis>.</para>
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19 |
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20 | <para>Create a new file <filename>/etc/sysconfig/clock</filename> by running
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21 | the following:</para>
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22 |
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23 | <para><screen><userinput>cat > /etc/sysconfig/clock << "EOF"</userinput>
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24 | # Begin /etc/sysconfig/clock
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25 |
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26 | UTC=0
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27 |
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28 | # End /etc/sysconfig/clock
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29 | <userinput>EOF</userinput></screen></para>
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30 |
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31 | <para>Now, you may want to take a look at a very good hint explaining how we
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32 | deal with time on LFS at <ulink
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33 | url="&hints-root;time.txt">&hints-root;time.txt</ulink>.
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34 | It explains issues such as timezones, UTC, and the TZ environment
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35 | variable.</para>
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36 |
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37 | </sect1>
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38 |
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