diff --git a/feature/sessions/src/commonMain/kotlin/io/github/droidkaigi/confsched/sessions/section/TimetableList.kt b/feature/sessions/src/commonMain/kotlin/io/github/droidkaigi/confsched/sessions/section/TimetableList.kt
index aa07b5052..a58ab2374 100644
--- a/feature/sessions/src/commonMain/kotlin/io/github/droidkaigi/confsched/sessions/section/TimetableList.kt
+++ b/feature/sessions/src/commonMain/kotlin/io/github/droidkaigi/confsched/sessions/section/TimetableList.kt
@@ -2,20 +2,27 @@ package io.github.droidkaigi.confsched.sessions.section
 
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.calculateEndPadding
+import androidx.compose.foundation.layout.calculateStartPadding
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.LazyListState
 import androidx.compose.foundation.lazy.items
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalLayoutDirection
 import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.unit.dp
 import io.github.droidkaigi.confsched.designsystem.theme.LocalRoomTheme
 import io.github.droidkaigi.confsched.model.Timetable
 import io.github.droidkaigi.confsched.model.TimetableItem
+import io.github.droidkaigi.confsched.sessions.component.TimetableTime
 import io.github.droidkaigi.confsched.ui.component.TimetableItemCard
 import io.github.droidkaigi.confsched.ui.component.TimetableItemTag
 import io.github.droidkaigi.confsched.ui.icon
@@ -24,7 +31,7 @@ import kotlinx.collections.immutable.PersistentMap
 const val TimetableListTestTag = "TimetableList"
 
 data class TimetableListUiState(
-    val timetableItemMap: PersistentMap<String, List<TimetableItem>>,
+    val timetableItemMap: PersistentMap<Pair<String, String>, List<TimetableItem>>,
     val timetable: Timetable,
 )
 
@@ -37,34 +44,59 @@ fun TimetableList(
     contentPadding: PaddingValues,
     modifier: Modifier = Modifier,
 ) {
+    val layoutDirection = LocalLayoutDirection.current
     LazyColumn(
         modifier = modifier.testTag(TimetableListTestTag),
         state = scrollState,
-        verticalArrangement = Arrangement.spacedBy(10.dp),
-        contentPadding = contentPadding,
+        verticalArrangement = Arrangement.spacedBy(16.dp),
+        contentPadding = PaddingValues(
+            top = contentPadding.calculateTopPadding(),
+            bottom = contentPadding.calculateBottomPadding(),
+            start = 16.dp + contentPadding.calculateStartPadding(layoutDirection),
+            end = 16.dp + contentPadding.calculateEndPadding(layoutDirection),
+        ),
     ) {
-        items(uiState.timetable.timetableItems, key = { it.id.value }) { timetableItem ->
-            val isBookmarked = uiState.timetable.bookmarks.contains(timetableItem.id)
-            TimetableItemCard(
-                isBookmarked = isBookmarked,
-                timetableItem = timetableItem,
-                onBookmarkClick = onBookmarkClick,
-                tags = {
-                    TimetableItemTag(
-                        tagText = timetableItem.room.name.currentLangTitle,
-                        icon = timetableItem.room.icon,
-                        tagColor = LocalRoomTheme.current.primaryColor,
-                        modifier = Modifier.background(LocalRoomTheme.current.containerColor),
-                    )
-                    Spacer(modifier = Modifier.padding(3.dp))
-                    timetableItem.language.labels.forEach { label ->
-                        TimetableItemTag(tagText = label, tagColor = MaterialTheme.colorScheme.onSurfaceVariant)
-                        Spacer(modifier = Modifier.padding(3.dp))
+        items(
+            // TODO: Check whether the number of recompositions increases.
+            items = uiState.timetableItemMap.toList(),
+            key = { it.first },
+        ) { (time, timetableItems) ->
+            Row {
+                TimetableTime(
+                    startTime = time.first,
+                    endTime = time.second,
+                )
+                Spacer(modifier = Modifier.width(12.dp))
+                Column(verticalArrangement = Arrangement.spacedBy(10.dp)) {
+                    timetableItems.onEach { timetableItem ->
+                        val isBookmarked =
+                            uiState.timetable.bookmarks.contains(timetableItem.id)
+                        TimetableItemCard(
+                            isBookmarked = isBookmarked,
+                            timetableItem = timetableItem,
+                            onBookmarkClick = onBookmarkClick,
+                            tags = {
+                                TimetableItemTag(
+                                    tagText = timetableItem.room.name.currentLangTitle,
+                                    icon = timetableItem.room.icon,
+                                    tagColor = LocalRoomTheme.current.primaryColor,
+                                    modifier = Modifier.background(LocalRoomTheme.current.containerColor),
+                                )
+                                Spacer(modifier = Modifier.padding(3.dp))
+                                timetableItem.language.labels.forEach { label ->
+                                    TimetableItemTag(
+                                        tagText = label,
+                                        tagColor = MaterialTheme.colorScheme.onSurfaceVariant
+                                    )
+                                    Spacer(modifier = Modifier.padding(3.dp))
+                                }
+                                Spacer(modifier = Modifier.weight(1f))
+                            },
+                            onTimetableItemClick = onTimetableItemClick,
+                        )
                     }
-                    Spacer(modifier = Modifier.weight(1f))
-                },
-                onTimetableItemClick = onTimetableItemClick,
-            )
+                }
+            }
         }
     }
 }