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	<title>時間顯示 &#8211; 21點情報網</title>
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		<title>Linux系統時間顯示從12小時制變更為24小時制</title>
		<link>https://ailog.tw/lifelog/2021/09/05/linux-12to24hr/</link>
		
		<dc:creator><![CDATA[blackjack]]></dc:creator>
		<pubDate>Sat, 04 Sep 2021 16:33:53 +0000</pubDate>
				<category><![CDATA[3C資訊]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[12-hour clock]]></category>
		<category><![CDATA[12小時制]]></category>
		<category><![CDATA[24-hour clock]]></category>
		<category><![CDATA[24小時制]]></category>
		<category><![CDATA[Linux系統時間顯示從12小時制變更為24小時制]]></category>
		<category><![CDATA[時間顯示]]></category>
		<guid isPermaLink="false">https://ailog.tw/lifelog/?p=10801</guid>

					<description><![CDATA[小編最近接到了一個反應，說同一個版本的Linux系統分別在兩台主機上顯示的時間格式卻是不一樣的，使用者確認過時 &#8230; <p class="link-more"><a href="https://ailog.tw/lifelog/2021/09/05/linux-12to24hr/" class="more-link">閱讀全文<span class="screen-reader-text">〈Linux系統時間顯示從12小時制變更為24小時制〉</span></a></p>]]></description>
										<content:encoded><![CDATA[<p><span style="font-size: 14pt; font-family: verdana, geneva;">小編最近接到了一個反應，說同一個版本的Linux系統分別在兩台主機上顯示的時間格式卻是不一樣的，使用者確認過時區及校時等問題，但輸入「date」指令顯示出來的時間一台是12小時制、另一台則是24小時制，小編在安裝作業系統通常都很慣性且保持一制的做法，因此也沒遇過這樣的狀況，一起來了解如何排除吧。<span id="more-10801"></span></span></p>
<p><span style="font-size: 14pt; font-family: verdana, geneva;">情境：</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">01、兩台Server的作業系統均是Oracle Linux 7.9</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">02、顯示系統時間及檔案時間時，一台是12小時制，另一台是24小時制。</span></p>
<p><span style="font-size: 14pt; font-family: verdana, geneva;">排除方法：</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">01、確認目前的時間顯示</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">輸入指令：</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">date</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;"><img decoding="async" class="alignnone size-medium wp-image-10802" src="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-01-300x47.png" alt="" width="300" height="47" srcset="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-01-300x47.png 300w, https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-01.png 321w" sizes="(max-width: 300px) 100vw, 300px" /></span></p>
<p><span style="font-size: 14pt; font-family: verdana, geneva;">02、選擇時間區域</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">輸入指令：</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">tzselect</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">接著選擇區域，本範例選擇「<span style="color: #ff0000;">5</span>」Asia，實際設定時請依據自己的需求設定。</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;"><img fetchpriority="high" decoding="async" class="alignnone wp-image-10803 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-012.png" alt="" width="781" height="348" srcset="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-012.png 781w, https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-012-300x134.png 300w, https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-012-768x342.png 768w" sizes="(max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px" /></span></p>
<p><span style="font-size: 14pt; font-family: verdana, geneva;">03、選擇國家</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">輸入指令：</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">43</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">接著選擇區域，本範例選擇「<span style="color: #ff0000;">43</span>」Taiwan，實際設定時請依據自己的需求設定。</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;"><img decoding="async" class="alignnone wp-image-10804 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-03.png" alt="" width="829" height="446" srcset="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-03.png 829w, https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-03-300x161.png 300w, https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-03-768x413.png 768w" sizes="(max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px" /></span></p>
<p><span style="font-size: 14pt; font-family: verdana, geneva;">04、確認時區設定變更</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">輸入指令：</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">1</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;"><img loading="lazy" decoding="async" class="alignnone wp-image-10805 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-04.png" alt="" width="577" height="260" srcset="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-04.png 577w, https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-04-300x135.png 300w" sizes="auto, (max-width: 577px) 100vw, 577px" /></span></p>
<p><span style="font-size: 14pt; font-family: verdana, geneva;">05、被份時間顯示設定</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">輸入指令：</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">mv /etc/localtime /root/</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">本範例是將「localtime」備份至「/root/」目錄下，請依據自行需求變更備份路徑。</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;"><img loading="lazy" decoding="async" class="alignnone wp-image-10806 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-05.png" alt="" width="477" height="46" srcset="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-05.png 477w, https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-05-300x29.png 300w" sizes="auto, (max-width: 477px) 100vw, 477px" /></span></p>
<p><span style="font-size: 14pt; font-family: verdana, geneva;">06、更新時間顯示設定</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">輸入指令：</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">ln -sf /usr/share/zoneinfo/Asia/Taipei /etc/localtime</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;"><img loading="lazy" decoding="async" class="alignnone wp-image-10807 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-06.png" alt="" width="767" height="52" srcset="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-06.png 767w, https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-06-300x20.png 300w" sizes="auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px" /></span></p>
<p><span style="font-size: 14pt; font-family: verdana, geneva;">07、確認時間顯示格式</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">輸入指令：</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;">date</span><br />
<span style="font-size: 14pt; font-family: verdana, geneva;"><img loading="lazy" decoding="async" class="alignnone wp-image-10808 size-full" src="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-07.png" alt="" width="313" height="76" srcset="https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-07.png 313w, https://ailog.tw/lifelog/wp-content/uploads/2021/09/linux-12to24hr-07-300x73.png 300w" sizes="auto, (max-width: 313px) 100vw, 313px" /></span></p>
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