diff --git a/feature/src/main/java/team/aliens/dms/android/feature/main/announcement/AnnouncementListScreen.kt b/feature/src/main/java/team/aliens/dms/android/feature/main/announcement/AnnouncementListScreen.kt
index c3d97aa95..ca1d4eaea 100644
--- a/feature/src/main/java/team/aliens/dms/android/feature/main/announcement/AnnouncementListScreen.kt
+++ b/feature/src/main/java/team/aliens/dms/android/feature/main/announcement/AnnouncementListScreen.kt
@@ -181,4 +181,11 @@ private fun NoticeCard(
 }
 
 private val LocalDateTime.text: String
-    @Composable inline get() = "${this.year}-${this.monthValue}-${this.dayOfMonth} ${this.hour}:${this.minute}"
+    @Composable inline get() = stringResource(
+        id = R.string.format_notice_time,
+        this.year,
+        this.monthValue,
+        this.dayOfMonth,
+        this.hour,
+        this.minute,
+    )
diff --git a/feature/src/main/java/team/aliens/dms/android/feature/notice/NoticeDetailsScreen.kt b/feature/src/main/java/team/aliens/dms/android/feature/notice/NoticeDetailsScreen.kt
index 8af053fd4..05541a3d1 100644
--- a/feature/src/main/java/team/aliens/dms/android/feature/notice/NoticeDetailsScreen.kt
+++ b/feature/src/main/java/team/aliens/dms/android/feature/notice/NoticeDetailsScreen.kt
@@ -89,7 +89,7 @@ internal fun NoticeDetailsScreen(
                     modifier = Modifier
                         .fillMaxWidth()
                         .horizontalPadding(),
-                    text = uiState.createdAt.text,
+                    text = uiState.createdAt!!.text,
                     style = DmsTheme.typography.caption,
                     color = DmsTheme.colorScheme.onSurfaceVariant,
                 )
@@ -127,6 +127,13 @@ internal fun NoticeDetailsScreen(
     }
 }
 
-private val LocalDateTime?.text: String
-    @Composable inline get() = "${this?.year}-${this?.monthValue}-${this?.dayOfMonth} ${this?.hour}:${this?.minute}"
+private val LocalDateTime.text: String
+    @Composable inline get() = stringResource(
+        id = R.string.format_notice_time,
+        this.year,
+        this.monthValue,
+        this.dayOfMonth,
+        this.hour,
+        this.minute,
+    )
 
diff --git a/feature/src/main/res/values/strings.xml b/feature/src/main/res/values/strings.xml
index 52108e59c..c3b6a9ad7 100644
--- a/feature/src/main/res/values/strings.xml
+++ b/feature/src/main/res/values/strings.xml
@@ -201,6 +201,8 @@
 
     <string name="notice_new_notice_exists">새로운 공지사항이 있습니다</string>
     <string name="notice_notices_not_exists">공지사항이 없습니다</string>
+    
+    <string name="format_notice_time">%d/%d/%d %d:%d</string>
 
     <!--my page-->
     <string name="my_page_sign_out">로그아웃</string>