Date and Time dialog for when the clock isn't synced.

chrome/browser/resources/options/browser_options.html

 <div id="settings" class="page" hidden>
   <header>
     <h1 i18n-content="settingsTitle"></h1>
   </header>
   <include src="reset_profile_settings_banner.html">
   <include src="automatic_settings_reset_banner.html">
 <if expr="chromeos">
   <include src="secondary_user_banner.html">
   <section>
     <div id="network-section-header" class="section-header">
@@ skipping 192 matching lines @@
       <div guest-visibility="disabled">
         <label for="timezone-select" class="option-name"
             i18n-content="timezone"></label>
         <div id="timezone-value">
           <select id="timezone-select" class="control"
               i18n-options="timezoneList" data-type="string"
               pref="cros.system.timezone">
           </select>
         </div>
       </div>
-      <div class="checkbox">
+      <div class="checkbox settings-row">
         <label>
           <input id="use-24hour-clock" pref="settings.clock.use_24hour_clock"
               type="checkbox">
           <span i18n-content="use24HourClock"></span>
         </label>
       </div>
+      <div id="time-synced-explanation" class="settings-row"
+          i18n-content="timeSyncedExplanation"></div>
+      <div id="set-time" class="settings-row" hidden>
+        <button id="set-time-button"
+            i18n-content="setTimeButton"></button>
+      </div>
     </div>
   </section>
 
   <section id="security-section" hidden>
     <h3 i18n-content="securityTitle"></h3>
     <div class="settings-row">
       <span i18n-content="consumerManagementEnrollDescription"></span>
     </div>
     <div class="settings-row">
       <button id="consumer-management-enroll-button"
@@ skipping 696 matching lines @@
     </div>
   </section>
   </div>  <!-- advanced-settings-container -->
   </div>  <!-- advanced-settings -->
   <footer>
     <button id="advanced-settings-expander" class="link-button"
         i18n-content="showAdvancedSettings">
     </button>
   </footer>
   </div>