<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[3]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">DOM</anchor> の<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">データ型</anchor> <dfn><code class="DOMi" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">DOMHighResTimeStamp</anchor></code></dfn> は、
高精度の<ruby><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">時刻印</anchor><rt>タイムスタンプ</rt></ruby>を表します。</p><section><h1>仕様書</h1><refs xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><ul xmlns="http://www.w3.org/1999/xhtml"><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="23" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[23]</anchor-end> <cite xml:lang="en">High Resolution Time Level 2</cite> (<time>2016-02-26 04:49:50 +09:00</time>) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://w3c.github.io/hr-time/">https://w3c.github.io/hr-time/</anchor-external><ul><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="24" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[24]</anchor-end> <cite xml:lang="en">High Resolution Time Level 2</cite> (<time>2016-02-26 04:49:50 +09:00</time>) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://w3c.github.io/hr-time/#h-introduction">https://w3c.github.io/hr-time/#h-introduction</anchor-external></li><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="28" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[28]</anchor-end> <strong><cite xml:lang="en">High Resolution Time Level 2</cite> (<time>2016-02-26 04:49:50 +09:00</time>) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://w3c.github.io/hr-time/#h-dom-domhighrestimestamp">https://w3c.github.io/hr-time/#h-dom-domhighrestimestamp</anchor-external></strong></li></ul></li></ul></refs></section><section><h1>意味</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="29" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[29]</anchor-end> <dfn><code class="DOMi" xml:lang="en">DOMHighResTimeStamp</code></dfn> は、<figure class="list"><ul><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="30" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[30]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">時刻起源</anchor>からの相対的な時間値</li><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="31" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[31]</anchor-end> 2つの <code class="DOMi" xml:lang="en">DOMHighResTimeStamp</code> の<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">時間長</anchor></li></ul></figure>... のいずれかを表します <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="28" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;28</anchor-internal></src>。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="25" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[25]</anchor-end> <code class="DOMi" xml:lang="en">DOMHighResTimeStamp</code> は、既存の <code class="JS" xml:lang="en">Date</code> や
<code class="DOMi" xml:lang="en">DOMTimeStamp</code> では次のような場合に問題があるとして、導入されました
<src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="24" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;24</anchor-internal></src>。<figure class="list"><ul><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="26" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[26]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">単調増加</anchor>であることが保証されないと、経過時間の計測や<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">アニメーション</anchor>の実装に使えません。</li><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="27" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[27]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">ミリ秒</anchor>よりも更に精度がないと、<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">アニメーション</anchor>や<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">音声</anchor>の同期に使えません。</li></ul></figure></p></section><section><h1>値</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="4" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[4]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Web IDL</anchor> 的には <code class="DOMi" xml:lang="en">DOMHighResTimeStamp</code> は<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">型定義</anchor>であり、
実際の<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">データ型<title xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:">データ型 (Web IDL)</title></anchor>は <code class="IDL" xml:lang="en">double</code> です <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="28" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;28</anchor-internal></src>。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="33" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[33]</anchor-end> 値は、<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">ミリ秒</anchor>単位の<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">時刻</anchor>とする<SHOULD xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">べきです</SHOULD> <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="28" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;28</anchor-internal></src>。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="32" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[32]</anchor-end> 5<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">マイクロ秒</anchor>精度の値とする<SHOULD xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">べきです</SHOULD> <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="28" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;28</anchor-internal></src>。
それが実現できない場合には、<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">ミリ秒</anchor>精度の値とすることができます <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="28" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;28</anchor-internal></src>。</p><history xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><p xmlns="http://www.w3.org/1999/xhtml"><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="5" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[5]</anchor-end> かつての規定では、<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">ナノ秒</anchor>の精度とする<SHOULD xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">べき</SHOULD>、それが実現できない場合には、
<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">ミリ秒</anchor>の精度の値とすることができる <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="2" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;2</anchor-internal></src> とされていました。</p></history><comment-p xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="36" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[36]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">単位</anchor>は <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">ms</anchor> なので、それより<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">精度</anchor>が高い時は、<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">小数</anchor>で表されます。</comment-p></section><section><h1>文脈</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="34" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[34]</anchor-end> <code class="DOMi" xml:lang="en">Performance</code> API で使われています。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="35" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[35]</anchor-end> <code class="DOMm" xml:lang="en">timeRemaining</code> が返す残り時間の値として使われます。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="39" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[39]</anchor-end> <code class="DOMi" xml:lang="en">Event</code> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">インターフェイス</anchor>の
<code class="DOMa" xml:lang="en">timeStamp</code> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">IDL属性</anchor>で使われています。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="60" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[60]</anchor-end> 
<code>Window</code>
の<f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">最終活性化時刻印</f>は、
<code>DOMHighResTimeStamp</code>
または<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">無限大</anchor>です。</p></section><section><h1>歴史</h1><refs xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><ul xmlns="http://www.w3.org/1999/xhtml"><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[1]</anchor-end> <cite xml:lang="en">Re: DOMHighResTimeStamp</cite>
( (<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Anne van Kesteren</anchor> 著, <time>2012-10-10 01:54:20 +09:00</time> 版))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://lists.w3.org/Archives/Public/public-script-coord/2012OctDec/0017.html">http://lists.w3.org/Archives/Public/public-script-coord/2012OctDec/0017.html</anchor-external></li><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="2" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[2]</anchor-end> <cite xml:lang="en">High Resolution Time</cite> (<time>2012-12-13 06:52:10 +09:00</time> 版) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://www.w3.org/TR/hr-time/#sec-DOMHighResTimeStamp">http://www.w3.org/TR/hr-time/#sec-DOMHighResTimeStamp</anchor-external></li></ul></refs><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="7" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[7]</anchor-end> <cite>IRC logs: freenode / #whatwg / 20140505</cite>
( (<time>2014-05-07 17:15:03 +09:00</time> 版))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://krijnhoetmer.nl/irc-logs/whatwg/20140505#l-231">http://krijnhoetmer.nl/irc-logs/whatwg/20140505#l-231</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="8" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[8]</anchor-end> <cite xml:lang="en">Re: <strong></strong>[<strong></strong>whatwg<strong></strong>]<strong></strong> Proposal: Event.creationTime</cite>
( (<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Anne van Kesteren</anchor> 著, <time>2014-05-07 19:43:49 +09:00</time> 版))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://lists.w3.org/Archives/Public/public-whatwg-archive/2014May/0051.html">http://lists.w3.org/Archives/Public/public-whatwg-archive/2014May/0051.html</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="9" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[9]</anchor-end> <cite>IRC logs: freenode / #whatwg / 20150611</cite>
(<time>2015-06-12 11:59:46 +09:00</time> 版)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://krijnhoetmer.nl/irc-logs/whatwg/20150611">http://krijnhoetmer.nl/irc-logs/whatwg/20150611</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="10" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[10]</anchor-end> <cite xml:lang="en">High Resolution Time Level 2</cite>
(<time>2015-06-18 07:47:22 +09:00</time> 版)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://www.w3.org/TR/2015/WD-hr-time-2-20150617/">http://www.w3.org/TR/2015/WD-hr-time-2-20150617/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="11" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[11]</anchor-end> <cite xml:lang="en">High Resolution Time Level 2</cite>
( (<time>2015-07-14 00:38:33 +09:00</time> 版))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://www.w3.org/TR/2015/WD-hr-time-2-20150714/">http://www.w3.org/TR/2015/WD-hr-time-2-20150714/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="12" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[12]</anchor-end> <cite xml:lang="en">High Resolution Time Level 2</cite>
(<time>2015-07-14 00:38:33 +09:00</time> 版)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://www.w3.org/TR/2015/WD-hr-time-2-20150714/">http://www.w3.org/TR/2015/WD-hr-time-2-20150714/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="13" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[13]</anchor-end> <cite xml:lang="en">High Resolution Time Level 2</cite>
(<time>2015-07-18 04:38:34 +09:00</time> 版)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://www.w3.org/TR/2015/WD-hr-time-2-20150717/">http://www.w3.org/TR/2015/WD-hr-time-2-20150717/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="14" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[14]</anchor-end> <cite xml:lang="en">High Resolution Time Level 2</cite>
(<time>2015-07-18 22:40:24 +09:00</time> 版)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://www.w3.org/TR/2015/WD-hr-time-2-20150718/">http://www.w3.org/TR/2015/WD-hr-time-2-20150718/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="15" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[15]</anchor-end> <cite xml:lang="en">High Resolution Time Level 2</cite>
(<time>2015-07-22 00:51:52 +09:00</time> 版)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://www.w3.org/TR/2015/WD-hr-time-2-20150721/">http://www.w3.org/TR/2015/WD-hr-time-2-20150721/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="16" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[16]</anchor-end> <cite xml:lang="en-CA">event.timeStamp now returns DOMHighResTimeStamp on Nightly/Aurora for Linux (Affected) | Firefox Site Compatibility</cite>
( (<time>2016-06-20 01:03:12 +09:00</time>))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://www.fxsitecompat.com/en-CA/docs/2015/event-timestamp-now-returns-domhighrestimestamp-on-nightly-aurora-for-linux/">https://www.fxsitecompat.com/en-CA/docs/2015/event-timestamp-now-returns-domhighrestimestamp-on-nightly-aurora-for-linux/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="17" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[17]</anchor-end> <cite xml:lang="en">High resolution timing for events · Issue #23 · whatwg/dom</cite>
( (<time>2016-06-20 11:28:34 +09:00</time>))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/whatwg/dom/issues/23">https://github.com/whatwg/dom/issues/23</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="18" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[18]</anchor-end> <cite xml:lang="en">77992 – Make Event.timeStamp return a DOMHighResTimeStamp on Windows (was Event.timeStamp should be relative to 1st January 1970 rather than the system start)</cite>
( (<time>2016-06-20 11:29:08 +09:00</time>))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://bugzilla.mozilla.org/show_bug.cgi?id=77992">https://bugzilla.mozilla.org/show_bug.cgi?id=77992</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="19" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[19]</anchor-end> <cite xml:lang="en">1026804 – Make Event.timeStamp return a DOMHighResTimeStamp by default (switch on pref)</cite>
( (<time>2016-06-20 11:33:40 +09:00</time>))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://bugzilla.mozilla.org/show_bug.cgi?id=1026804">https://bugzilla.mozilla.org/show_bug.cgi?id=1026804</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="20" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[20]</anchor-end> <cite xml:lang="en">receivedTime and upcoming DOM update · Issue #145 · WebAudio/web-midi-api</cite>
( (<time>2016-06-20 11:37:25 +09:00</time>))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/WebAudio/web-midi-api/issues/145">https://github.com/WebAudio/web-midi-api/issues/145</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="21" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[21]</anchor-end> <cite xml:lang="en"><strong>[</strong>whatwg<strong>]</strong> Proposal: Event.creationTime</cite>
( (<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Brian Birtles</anchor>著, <time>2014-05-07 14:51:25 +09:00</time>))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://lists.w3.org/Archives/Public/public-whatwg-archive/2014May/0046.html">https://lists.w3.org/Archives/Public/public-whatwg-archive/2014May/0046.html</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="22" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[22]</anchor-end> <cite xml:lang="en">Issue 574514 - chromium - MSE conformance test failure related to event.timeStamp - Monorail</cite>
( (<time>2016-06-20 11:45:00 +09:00</time>))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://bugs.chromium.org/p/chromium/issues/detail?id=574514">https://bugs.chromium.org/p/chromium/issues/detail?id=574514</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="6" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[6]</anchor-end> <cite>High Resolution Timestamps for Events | Web Updates - Google Developers</cite>
( (<time>2016-05-19 01:39:56 +09:00</time>))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://developers.google.com/web/updates/2016/01/high-res-timestamps">https://developers.google.com/web/updates/2016/01/high-res-timestamps</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="37" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[37]</anchor-end> <cite xml:lang="en">Large rewrite/refactoring of the spec (#156)</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">tobie</anchor>著, <time>2017-01-26 09:59:32 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/w3c/sensors/commit/615141fdd299e63e221a87d27f83766f345829e9">https://github.com/w3c/sensors/commit/615141fdd299e63e221a87d27f83766f345829e9</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="38" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[38]</anchor-end> <cite xml:lang="en">Make Event's timeStamp use DOMHighResTimeStamp</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">majido</anchor>著, <time>2017-07-13 16:38:55 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/whatwg/dom/commit/912d58746bc4c67c2fd210124639f7c34991fce5">https://github.com/whatwg/dom/commit/912d58746bc4c67c2fd210124639f7c34991fce5</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="40" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[40]</anchor-end> <cite xml:lang="en">High resolution timing for events · Issue #23 · whatwg/dom</cite>
(<time>2017-07-14 23:42:53 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/whatwg/dom/issues/23">https://github.com/whatwg/dom/issues/23</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="41" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[41]</anchor-end> <cite xml:lang="en">High resolution timing for events · Issue #23 · whatwg/dom</cite>
(<time>2017-07-15 00:22:30 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/whatwg/dom/issues/23">https://github.com/whatwg/dom/issues/23</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="42" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[42]</anchor-end> <cite xml:lang="en">Update Event.timeStamp type to DOMHighResTimeStamp. by majido · Pull Request #420 · whatwg/dom</cite>
(<time>2017-07-15 00:22:45 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/whatwg/dom/pull/420">https://github.com/whatwg/dom/pull/420</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="43" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[43]</anchor-end> <cite xml:lang="en">Is DOMHighResTimeStamp a &quot;JSON type&quot;? · Issue #504 · heycam/webidl</cite>
(<time>2018-01-03 18:02:18 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/heycam/webidl/issues/504">https://github.com/heycam/webidl/issues/504</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="44" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[44]</anchor-end> <cite xml:lang="en">Temporarily reducing precision of DOMHighResTimeStamp in Chrome</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Ross McIlroy</anchor>著, <time>2018-01-08 21:22:12 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://lists.w3.org/Archives/Public/public-web-perf/2018Jan/0005.html">https://lists.w3.org/Archives/Public/public-web-perf/2018Jan/0005.html</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="45" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[45]</anchor-end> <cite>Actions required to mitigate Speculative Side-Channel Attack techniques - The Chromium Projects</cite>
(<time>2018-01-09 10:37:14 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://www.chromium.org/Home/chromium-security/ssca">https://www.chromium.org/Home/chromium-security/ssca</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="46" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[46]</anchor-end> <cite xml:lang="en-US">Mitigating speculative execution side-channel attacks in Microsoft Edge and Internet Explorer - Microsoft Edge Dev BlogMicrosoft Edge Dev Blog</cite>
(<time>2018-01-09 11:13:06 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://blogs.windows.com/msedgedev/2018/01/03/speculative-execution-mitigations-microsoft-edge-internet-explorer/">https://blogs.windows.com/msedgedev/2018/01/03/speculative-execution-mitigations-microsoft-edge-internet-explorer/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="47" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[47]</anchor-end> <cite xml:lang="en-US">Mitigations landing for new class of timing attack | Mozilla Security Blog</cite>
(<time>2018-01-09 11:23:51 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://blog.mozilla.org/security/2018/01/03/mitigations-landing-new-class-timing-attack/">https://blog.mozilla.org/security/2018/01/03/mitigations-landing-new-class-timing-attack/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="48" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[48]</anchor-end> <cite xml:lang="en">Speculative execution side-channel attack (&quot;Spectre&quot;) — Mozilla</cite>
(<time>2018-01-09 11:25:51 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://www.mozilla.org/en-US/security/advisories/mfsa2018-01/">https://www.mozilla.org/en-US/security/advisories/mfsa2018-01/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="49" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[49]</anchor-end> <cite>What Spectre and Meltdown Mean For WebKit | WebKit</cite>
(<time>2018-01-11 15:22:44 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://webkit.org/blog/8048/what-spectre-and-meltdown-mean-for-webkit/">https://webkit.org/blog/8048/what-spectre-and-meltdown-mean-for-webkit/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="50" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[50]</anchor-end> <cite xml:lang="en">metric -&gt; name, value -&gt; duration, duration as DOMHighResTimestamp</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Charles Vazac</anchor>著, <time>2017-07-26 05:37:08 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/w3c/server-timing/commit/48fcadffbb8ec4cf23404f681c607b2146c76078">https://github.com/w3c/server-timing/commit/48fcadffbb8ec4cf23404f681c607b2146c76078</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="51" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[51]</anchor-end> <cite xml:lang="en">165503 – performance.now() should truncate to 100us</cite>
(<time>2018-01-09 23:46:21 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://bugs.webkit.org/show_bug.cgi?id=165503">https://bugs.webkit.org/show_bug.cgi?id=165503</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="52" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[52]</anchor-end> <cite xml:lang="en">Temporarily reducing precision of DOMHighResTimeStamp in Chrome</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Ross McIlroy</anchor>著, <time>2018-01-08 21:22:12 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://lists.w3.org/Archives/Public/public-web-perf/2018Jan/0005.html">https://lists.w3.org/Archives/Public/public-web-perf/2018Jan/0005.html</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="53" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[53]</anchor-end> <cite xml:lang="en">Add a note regarding HRT precision (#57)</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">plehegar</anchor>著, <time>2018-02-28 23:25:12 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/w3c/hr-time/commit/c7924fffdca73f8cf5ee057450a4ad9a5a73d645">https://github.com/w3c/hr-time/commit/c7924fffdca73f8cf5ee057450a4ad9a5a73d645</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="54" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[54]</anchor-end> <cite xml:lang="en">Add a note regarding HRT precision by plehegar · Pull Request #57 · w3c/hr-time</cite>
(<time>2018-05-08 21:44:50 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/w3c/hr-time/pull/57">https://github.com/w3c/hr-time/pull/57</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="55" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[55]</anchor-end> <cite xml:lang="en">Removed minimum resolution mention from SOTD</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">plehegar</anchor>著, <time>2018-03-01 01:37:40 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/w3c/hr-time/commit/5220e4b80d62c4784c214dd66935e51366210680">https://github.com/w3c/hr-time/commit/5220e4b80d62c4784c214dd66935e51366210680</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="56" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[56]</anchor-end> <cite xml:lang="en">Define the reference clock used for RTCRtpContributingSource.timestamp (</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">taylor-b</anchor>著, <time>2018-05-17 14:08:54 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/w3c/webrtc-pc/commit/2820f6095ba81e018355260c4fdb801f311f4417">https://github.com/w3c/webrtc-pc/commit/2820f6095ba81e018355260c4fdb801f311f4417</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="57" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[57]</anchor-end> <cite xml:lang="en">RTCRtpContributingSource.timestamp needs a clearer definition · Issue #1690 · w3c/webrtc-pc</cite>
(<time>2018-05-19 11:34:02 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/w3c/webrtc-pc/issues/1690">https://github.com/w3c/webrtc-pc/issues/1690</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="58" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[58]</anchor-end> <cite xml:lang="en">Not possible to tell how old `RTCRtpContributingSource.timestamp` is · Issue #1497 · w3c/webrtc-pc</cite>
(<time>2018-05-19 11:34:12 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/w3c/webrtc-pc/issues/1497">https://github.com/w3c/webrtc-pc/issues/1497</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="59" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[59]</anchor-end> <cite xml:lang="en">Define the reference clock used for RTCRtpContributingSource.timestamp by taylor-b · Pull Request #1854 · w3c/webrtc-pc</cite>
(<time>2018-05-19 11:34:19 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/w3c/webrtc-pc/pull/1854">https://github.com/w3c/webrtc-pc/pull/1854</anchor-external></p></section></body></html>