diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/live/room/LiveRoomService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/live/room/LiveRoomService.kt
index 77c0255..429fed4 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/live/room/LiveRoomService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/live/room/LiveRoomService.kt
@@ -57,6 +57,7 @@ import java.time.LocalDateTime
 import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 import java.util.Date
+import java.util.Locale
 import java.util.concurrent.locks.ReentrantReadWriteLock
 import kotlin.concurrent.write
 
@@ -290,6 +291,9 @@ class LiveRoomService(
             .atZone(ZoneId.of("UTC"))
             .withZoneSameInstant(ZoneId.of(timezone))
 
+        val dateFormatter = DateTimeFormatter.ofPattern("yyyy.MM.dd E a hh:mm")
+            .withLocale(Locale(timezone))
+
         val response = GetRoomDetailResponse(
             roomId = roomId,
             title = room.title,
@@ -299,7 +303,7 @@ class LiveRoomService(
             numberOfParticipantsTotal = room.numberOfPeople,
             numberOfParticipants = 0,
             channelName = room.channelName,
-            beginDateTime = beginDateTime.format(DateTimeFormatter.ofPattern("yyyy.MM.dd E hh:mm a")),
+            beginDateTime = beginDateTime.format(dateFormatter),
             isPaid = false,
             isPrivateRoom = room.type == LiveRoomType.PRIVATE,
             password = room.password