[system-administrators-guide] systemd was changed couple releases ago to not sync the RTC on shutdown en-US/Configuring_NTP_Using_

[stephenw]

commit 95adf27624cb18174f71a586db099257f556a54e
Author: Stephen Wadeley <swadeley at redhat.com>
Date:   Tue Nov 12 10:03:48 2013 +0100

    systemd was changed couple releases ago to not sync the RTC on shutdown
    en-US/Configuring_NTP_Using_ntpd.xml

 en-US/Configuring_NTP_Using_ntpd.xml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/en-US/Configuring_NTP_Using_ntpd.xml b/en-US/Configuring_NTP_Using_ntpd.xml
index 3783a66..40b5a20 100644
--- a/en-US/Configuring_NTP_Using_ntpd.xml
+++ b/en-US/Configuring_NTP_Using_ntpd.xml
@@ -17,7 +17,7 @@
       Accurate time keeping is important for a number of reasons in IT. In networking for example, accurate time stamps in packets and logs are required. Logs are used to investigate service and security issues and so timestamps made on different systems must be made by synchronized clocks to be of real value. As systems and networks become increasingly faster, there is a corresponding need for clocks with greater accuracy and resolution. In some countries there are legal obligations to keep accurately synchronized clocks. Please see <citetitle pubwork="webpage">www.ntp.org</citetitle> for more information. In Linux systems, <systemitem class="protocol">NTP</systemitem> is implemented by a daemon running in user space. The default <systemitem class="protocol">NTP</systemitem> user space daemon in &MAJOROSVER; is <systemitem class="service">chronyd</systemitem>. It must be disabled if you want to use the <systemitem class="service">ntpd</systemitem> daemon. See <xref linkend=
 "ch-Configuring_NTP_Using_the_chrony_Suite" /> for information on <application>chrony</application>.
     </para>
     <para>
-      The user space daemon updates the system clock, which is a software clock running in the kernel. Linux uses a software clock as its system clock for better resolution than the typical embedded hardware clock referred to as the <quote><firstterm>Real Time Clock</firstterm></quote> <acronym>(RTC)</acronym>. See the <filename>rtc(4)</filename> and <filename>hwclock(8)</filename> man pages for information on hardware clocks. The system clock can keep time by using various clock sources. Usually, the <firstterm>Time Stamp Counter</firstterm> (<acronym>TSC</acronym>) is used. The TSC is a CPU register which counts the number of cycles since it was last reset. It is very fast, has a high resolution, and there are no interrupts. On system start, the system clock reads the time and date from the RTC. The time kept by the RTC will drift away from actual time by up to 5 minutes per month due to temperature variations. Hence the need for the system clock to be constantly synchroni
 zed with external time references and to update the RTC on system shut down. When the system clock is being synchronized by <systemitem class="service">ntpd</systemitem>, the kernel will in turn update the RTC every 11 minutes automatically.
+      The user space daemon updates the system clock, which is a software clock running in the kernel. Linux uses a software clock as its system clock for better resolution than the typical embedded hardware clock referred to as the <quote><firstterm>Real Time Clock</firstterm></quote> <acronym>(RTC)</acronym>. See the <filename>rtc(4)</filename> and <filename>hwclock(8)</filename> man pages for information on hardware clocks. The system clock can keep time by using various clock sources. Usually, the <firstterm>Time Stamp Counter</firstterm> (<acronym>TSC</acronym>) is used. The TSC is a CPU register which counts the number of cycles since it was last reset. It is very fast, has a high resolution, and there are no interrupts. On system start, the system clock reads the time and date from the RTC. The time kept by the RTC will drift away from actual time by up to 5 minutes per month due to temperature variations. Hence the need for the system clock to be constantly synchroni
 zed with external time references. When the system clock is being synchronized by <systemitem class="service">ntpd</systemitem>, the kernel will in turn update the RTC every 11 minutes automatically.
     </para>
      
     </section>