diff --git a/source b/source
index 15a207d656d..d079d42d650 100644
--- a/source
+++ b/source
@@ -2613,6 +2613,14 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
        <li><dfn data-x-href="https://fetch.spec.whatwg.org/#concept-request-add-range-header">add a range header</dfn></li>
       </ul>
      </li>
+     <li>
+      <dfn data-x="fetch-timing-info"
+      data-x-href="https://fetch.spec.whatwg.org/#fetch-timing-info">fetch timing info</dfn> and its
+      associated:
+      <ul class="brief">
+       <li><dfn data-x="fetch-timing-info-start-time" data-x-href="https://fetch.spec.whatwg.org/#fetch-timing-info-start-time">start time</dfn></li>
+      </ul>
+     </li>
     </ul>
 
     <p>The following terms are defined in <cite>Referrer Policy</cite>: <ref
@@ -88478,10 +88486,6 @@ interface <dfn interface>Location</dfn> { // but see also <a href="#the-location
    body</dfn></dt>
    <dd>an algorithm expecting a <span data-x="concept-response">response</span></dd>
 
-   <dt><dfn data-x="navigation-params-unsafe-start-time">unsafe start time</dfn></dt>
-   <dd>a number, representing a value of the <span>unsafe shared current time</span> when the
-   navigation has started</dd>
-
    <dt><dfn data-x="navigation-params-uncommitted-preloads">uncommitted preloads</dfn></dt>
    <dd>null or a <span>list</span> of algorithms representing early preloaded links, to be committed
    once the <code>Document</code> has been created</dd>
@@ -88539,8 +88543,6 @@ interface <dfn interface>Location</dfn> { // but see also <a href="#the-location
   algorithm that does nothing):</p>
 
   <ol>
-   <li><p>Let <var>unsafeNavigationStartTime</var> be the <span>unsafe shared current time</span>.</p></li>
-
    <li><p>If <var>resource</var> is a <span>URL</span>, then set <var>resource</var> to a new <span
    data-x="concept-request">request</span> whose <span data-x="concept-request-url">URL</span> is
    <var>resource</var>.</p></li>
@@ -88672,24 +88674,11 @@ interface <dfn interface>Location</dfn> { // but see also <a href="#the-location
     to completion.</p>
    </li>
 
-   <li>
-    <p>Switch on <var>unloadPromptResult</var>:</p>
-
-    <dl class="switch">
-     <dt>"<code data-x="">no-prompt</code>"</dt>
-     <dd>Do nothing.</dd>
-
-     <dt>"<code data-x="">confirm</code>"</dt>
-     <dd>Set <var>unsafeNavigationStartTime</var> to the <span>unsafe shared current
-     time</span>.</dd>
-
-     <dt>"<code data-x="">refuse</code>"</dt>
-     <dd>Return a new <span>WebDriver BiDi navigation status</span> whose <span
-     data-x="navigation-status-id">id</span> is <var>navigationId</var> and <span
-     data-x="navigation-status-status">status</span> is "<code
-     data-x="navigation-status-canceled">canceled</code>".</dd>
-    </dl>
-   </li>
+   <li><p>If <var>unloadPromptResult</var> is "<code data-x="">refuse</code>", then return a new
+   <span>WebDriver BiDi navigation status</span> whose <span
+   data-x="navigation-status-id">id</span> is <var>navigationId</var> and <span
+   data-x="navigation-status-status">status</span> is "<code
+   data-x="navigation-status-canceled">canceled</code>".</p></li>
 
    <li><p><span data-x="abort a document">Abort</span> the <span>active document</span> of
    <var>browsingContext</var>.</p></li>
@@ -88792,8 +88781,6 @@ interface <dfn interface>Location</dfn> { // but see also <a href="#the-location
        <var>historyHandling</var>, <span
        data-x="navigation-params-process-response-end-of-body">process response end of body</span>
        is <var>processResponseEndOfBody</var>, <span
-       data-x="navigation-params-unsafe-start-time">unsafe start time</span> is
-       <var>unsafeNavigationStartTime</var>, <span
        data-x="navigation-params-has-cross-origin-redirects">has cross-origin redirects</span> is
        false, and <span
        data-x="navigation-params-uncommitted-preloads">uncommitted preloads</span> is null.</p></li>
@@ -88855,8 +88842,6 @@ interface <dfn interface>Location</dfn> { // but see also <a href="#the-location
        <var>historyHandling</var>, <span
        data-x="navigation-params-process-response-end-of-body">process response end of body</span>
        is <var>processResponseEndOfBody</var>, <span
-       data-x="navigation-params-unsafe-start-time">unsafe start time</span> is
-       <var>unsafeNavigationStartTime</var>, <span
        data-x="navigation-params-has-cross-origin-redirects">has cross-origin redirects</span> is
        false, and <span
        data-x="navigation-params-uncommitted-preloads">uncommitted preloads</span> is null.</p></li>
@@ -88886,8 +88871,7 @@ interface <dfn interface>Location</dfn> { // but see also <a href="#the-location
      <var>navigationType</var>, <var>sandboxFlags</var>, <var>historyPolicyContainer</var>,
      <var>initiatorPolicyContainer</var>, <var>allowedToDownload</var>,
      <var>hasTransientActivation</var>, <var>incumbentNavigationOrigin</var>,
-     <var>historyHandling</var>, <var>processResponseEndOfBody</var>, and
-     <var>unsafeNavigationStartTime</var>.</p></dd>
+     <var>historyHandling</var>, and <var>processResponseEndOfBody</var>.</p></dd>
 
      <dt>Otherwise, <var>resource</var> is a <span data-x="concept-request">request</span> whose
      <span data-x="concept-request-url">URL</span>'s <span data-x="concept-url-scheme">scheme</span>
@@ -88908,9 +88892,9 @@ interface <dfn interface>Location</dfn> { // but see also <a href="#the-location
   data-x="policy container">policy containers</span> <var>historyPolicyContainer</var> and
   <var>initiatorPolicyContainer</var>, a boolean <var>allowedToDownload</var>, a boolean
   <var>hasTransientActivation</var>, an <span>origin</span> <var>incumbentNavigationOrigin</var>, a
-  <span>history handling behavior</span> <var>historyHandling</var>,
+  <span>history handling behavior</span> <var>historyHandling</var>, and
   <var>processResponseEndOfBody</var>, which is an algorithm accepting a <span
-  data-x="concept-response">response</span>, and a number <var>unsafeNavigationStartTime</var>:</p>
+  data-x="concept-response">response</span>:</p>
 
   <ol>
    <li><p>Let <var>response</var> be null.</p></li>
@@ -89214,8 +89198,7 @@ interface <dfn interface>Location</dfn> { // but see also <a href="#the-location
    <var>browsingContext</var>, <span data-x="navigation-params-hh">history handling</span> is
    <var>historyHandling</var>, <span
    data-x="navigation-params-process-response-end-of-body">process response end of body</span> is
-   <var>processResponseEndOfBody</var>, <span data-x="navigation-params-unsafe-start-time">unsafe
-   start time</span> is <var>unsafeNavigationStartTime</var>,
+   <var>processResponseEndOfBody</var>,
    <span data-x="navigation-params-has-cross-origin-redirects">has cross-origin redirects</span> is
    <var>hasCrossOriginRedirects</var>, and
    <span data-x="navigation-params-uncommitted-preloads">uncommitted preloads</span> is
@@ -89701,11 +89684,9 @@ interface <dfn interface>Location</dfn> { // but see also <a href="#the-location
    </li>
 
    <li><p>Let <var>loadTimingInfo</var> be a new <span>document load timing info</span> with its
-   <span>navigation start time</span> set to the result of calling <span>coarsen time</span> with
-   <var>navigationParams</var>'s <span data-x="navigation-params-unsafe-start-time">unsafe start
-   time</span> and <var>document</var>'s <span>relevant settings object</span>'s <span
-   data-x="concept-settings-object-cross-origin-isolated-capability">cross-origin isolated
-   capability</span>.</p></li>
+   <span>navigation start time</span> set to <var>response</var>'s
+   <span data-x="concept-response-timing-info">timing info</span>'s
+   <span data-x="fetch-timing-info-start-time">start time</span>.</p></li>
 
    <li>
     <p>Let <var>document</var> be a new <code>Document</code>, whose <span
@@ -90370,8 +90351,7 @@ new PaymentRequest(&hellip;); // Allowed to use
     enforcement result</span>, <span data-x="navigation-params-reserved-environment">reserved
     environment</span> is null, <span
     data-x="navigation-params-process-response-end-of-body">process response end of body</span> is
-    an algorithm that does nothing, <span data-x="navigation-params-unsafe-start-time">unsafe start
-    time</span> is the <span>unsafe shared current time</span>, and <span
+    an algorithm that does nothing, and <span
     data-x="navigation-params-browsing-context">browsing context</span> is
     <var>browsingContext</var>.</p>