diff --git a/2025/src/components/Footer.astro b/2025/src/components/Footer.astro
index 9f1e20a..717bbde 100644
--- a/2025/src/components/Footer.astro
+++ b/2025/src/components/Footer.astro
@@ -22,7 +22,7 @@ import { Mail, XIcon } from "@lucide/astro";
         </h3>
         <ul class="space-y-1 text-xs text-gray-300 sm:text-sm md:text-base">
           <li>2025年11月2日（日）</li>
-          <li>9:30 - 17:30</li>
+          <li>9:15 - 17:30</li>
           <li>アキバプラザ・アキバホール</li>
         </ul>
       </div>
diff --git a/2025/src/components/Top.astro b/2025/src/components/Top.astro
index 8699732..4ad415d 100644
--- a/2025/src/components/Top.astro
+++ b/2025/src/components/Top.astro
@@ -26,7 +26,7 @@ import { ExternalLink, Heart, Zap } from "@lucide/astro";
       </div>
       <div class="rounded-lg bg-white/80 px-4 py-2 shadow-sm backdrop-blur-sm">
         <p class="text-base font-medium text-gray-800 md:text-lg">
-          9:30 - 17:30 (After party 17:30 ~ 19:30)
+          9:15 - 17:30 (After party 17:30 ~ 19:30)
         </p>
       </div>
       <div class="rounded-lg bg-white/80 px-4 py-2 shadow-sm backdrop-blur-sm">
diff --git a/2025/src/components/Venue.astro b/2025/src/components/Venue.astro
index f9ee440..de4a6b3 100644
--- a/2025/src/components/Venue.astro
+++ b/2025/src/components/Venue.astro
@@ -26,7 +26,7 @@ import Heading from "./Heading.astro";
             <div class="flex items-start gap-2">
               <Clock class="mt-0.5 h-4 w-4 flex-shrink-0 text-emerald-600" />
               <p class="text-sm md:text-base">
-                9:30 - 17:30 (懇親会 17:30 ~ 19:30)
+                9:15 - 17:30 (懇親会 17:30 ~ 19:30)
               </p>
             </div>
           </div>
diff --git a/2025/src/content/timetable.toml b/2025/src/content/timetable.toml
index 06a6b87..172f53f 100644
--- a/2025/src/content/timetable.toml
+++ b/2025/src/content/timetable.toml
@@ -7,8 +7,8 @@ end_at = 2025-11-02T10:00:00+09:00
 [[sessions]]
 title = 'nvim-cmp retrospective: Exploring Completion and Facing FOSS Challenges'
 speaker_name = 'hrsh7th'
-start_at = 2025-11-02T09:45:00+09:00
-end_at = 2025-11-02T10:00:00+09:00
+start_at = 2025-11-02T10:00:00+09:00
+end_at = 2025-11-02T10:50:00+09:00
 session_id = 'hrsh7th'
 
 [[sessions]]