CentOS7修改服务器系统时间的方法
<p>未知何故，服务器上的系统时间不对，比实际的UTC快了将近63分钟。在涉及本地文件与远程服务器文件的时间戳校验时，容易产生混淆。</p>
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这里把系统时间更正的过程记录如下。</p>
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参考资料：http://www.centoscn.com/CentOS/config/2015/0723/5901.html</p>
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<span><strong>在CentOS 7里面有一个命令timedatectl可以帮助我们修改服务器的时区。</strong></span></p>
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<strong>1. 查看服务器里的时间设置 timedatectl ，它等同于 timedatectl status ：</strong></p>
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<code class="bash plain">$ timedatectl</code>
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<code class="bash plain">Local </code><code class="bash functions">time</code><code class="bash plain">: Mon 2016-08-29 16:20:35 CST</code>
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<code class="bash plain">Universal </code><code class="bash functions">time</code><code class="bash plain">: Mon 2016-08-29 08:20:35 UTC</code>
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<code class="bash plain">RTC </code><code class="bash functions">time</code><code class="bash plain">: Mon 2016-08-29 08:18:07</code>
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<code class="bash plain">Time zone: Asia</code><code class="bash plain">/Shanghai</code> <code class="bash plain">(CST, +0800)</code>
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<code class="bash plain">NTP enabled: </code><code class="bash functions">yes</code>
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<code class="bash plain">NTP synchronized: no</code>
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<code class="bash plain">RTC </code><code class="bash keyword">in</code> <code class="bash functions">local</code> <code class="bash plain">TZ: no</code>
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<code class="bash plain">DST active: n</code><code class="bash plain">/a</code>
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<strong>2. 了解 timedatectl 命令的各个参数：</strong></p>
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<code class="bash plain">$ timedatectl -h</code>
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<code class="bash plain">timedatectl COMMAND ...</code>
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<code class="bash plain">Query or change system </code><code class="bash functions">time</code> <code class="bash plain">and </code><code class="bash functions">date</code> <code class="bash plain">settings.</code>
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<code class="bash plain">-h --help Show this help message</code>
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<code class="bash plain">--version Show package version</code>
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<code class="bash plain">--no-pager Do not pipe output into a pager</code>
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<code class="bash plain">--no-ask-password Do not prompt </code><code class="bash keyword">for</code> <code class="bash plain">password</code>
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<code class="bash plain">-H --host=HOST Operate on remote host</code>
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<code class="bash plain">-M --machine=CONTAINER Operate on </code><code class="bash functions">local</code> <code class="bash plain">container</code>
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<code class="bash plain">--adjust-system-clock Adjust system clock when changing </code><code class="bash functions">local</code> <code class="bash plain">RTC mode</code>
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<code class="bash plain">Commands:</code>
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<code class="bash plain">status Show current </code><code class="bash functions">time</code> <code class="bash plain">settings</code>
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<code class="bash functions">set</code><code class="bash plain">-</code><code class="bash functions">time</code> <code class="bash plain">TIME Set system </code><code class="bash functions">time</code>
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<code class="bash functions">set</code><code class="bash plain">-timezone ZONE Set system </code><code class="bash functions">time</code> <code class="bash plain">zone</code>
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<code class="bash plain">list-timezones Show known </code><code class="bash functions">time</code> <code class="bash plain">zones</code>
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<code class="bash functions">set</code><code class="bash plain">-</code><code class="bash functions">local</code><code class="bash plain">-rtc BOOL Control whether RTC is </code><code class="bash keyword">in</code> <code class="bash functions">local</code> <code class="bash functions">time</code>
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<code class="bash functions">set</code><code class="bash plain">-ntp BOOL Control whether NTP is enabled</code>
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<strong>3. 设置时间</strong></p>
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<code class="bash plain">$ </code><code class="bash functions">sudo</code> <code class="bash plain">timedatectl </code><code class="bash functions">set</code><code class="bash plain">-</code><code class="bash functions">time</code> <code class="bash plain">15:26:58$ timedatectl</code>
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<code class="bash plain">Local </code><code class="bash functions">time</code><code class="bash plain">: Mon 2016-08-29 15:27:00 CST</code>
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<code class="bash plain">Universal </code><code class="bash functions">time</code><code class="bash plain">: Mon 2016-08-29 07:27:00 UTC</code>
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<code class="bash plain">RTC </code><code class="bash functions">time</code><code class="bash plain">: Mon 2016-08-29 07:27:00</code>
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<code class="bash plain">Time zone: Asia</code><code class="bash plain">/Shanghai</code> <code class="bash plain">(CST, +0800)</code>
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<code class="bash plain">NTP enabled: no</code>
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<code class="bash plain">NTP synchronized: no</code>
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<code class="bash plain">RTC </code><code class="bash keyword">in</code> <code class="bash functions">local</code> <code class="bash plain">TZ: no</code>
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<code class="bash plain">DST active: n</code><code class="bash plain">/a</code>
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<p>
<span><strong>PS:下面看下CentOS修改服务器系统时间</strong></span></p>
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linux安装完毕后，一般都是国外的世界，一点都不方便设置任务，或者导致网站获取本地的时间错乱，所以就需要把服务器的时间改为和本地时间一致，也就是换成中国的时间。</p>
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<span>第一条指令：date –s '2016-10-31 10:10:10'</span></p>
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<span>第二条指令：clock –w //将日期写入CMOS</span></p>
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时间按照上面的格式，操作完毕可以再用</p>
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<span>date</span></p>
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查看服务器时间，如果和设置的一样，就表示成功了</p>
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<img style="max-width:100%!important;height:auto!important;"title="CentOS7修改服务器系统时间的方法" alt="CentOS7修改服务器系统时间的方法" id="theimg" src="https://zhuji.jb51.net/uploads/img/202305/60972a6cb1d4099faab8e7f6ef78eb08.jpg"></p>
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以上所述是小编给大家介绍的CentOS7修改服务器系统时间的方法，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！</p>
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