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 5661830..9e5bbba 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
 
@@ -125,14 +126,13 @@ class LiveRoomService(
                 val beginDateTime = it.beginDateTime
                     .atZone(ZoneId.of("UTC"))
                     .withZoneSameInstant(ZoneId.of(timezone))
+                    .format(DateTimeFormatter.ofPattern("yyyy년 MM월 dd일 (E) a HH시 mm분").withLocale(Locale.KOREAN))
 
                 GetRoomListResponse(
                     roomId = it.id!!,
                     title = it.title,
                     content = it.notice,
-                    beginDateTime = beginDateTime.format(
-                        DateTimeFormatter.ofPattern("yyyy.MM.dd E hh:mm a")
-                    ),
+                    beginDateTime = beginDateTime,
                     numberOfParticipate = (roomInfo?.listenerCount ?: 0) +
                         (roomInfo?.speakerCount ?: 0) +
                         (roomInfo?.managerCount ?: 0),
@@ -297,6 +297,7 @@ class LiveRoomService(
         val beginDateTime = room.beginDateTime
             .atZone(ZoneId.of("UTC"))
             .withZoneSameInstant(ZoneId.of(timezone))
+            .format(DateTimeFormatter.ofPattern("yyyy년 MM월 dd일 (E) a HH시 mm분").withLocale(Locale.KOREAN))
 
         val response = GetRoomDetailResponse(
             roomId = roomId,
@@ -307,7 +308,7 @@ class LiveRoomService(
             numberOfParticipantsTotal = room.numberOfPeople,
             numberOfParticipants = 0,
             channelName = room.channelName,
-            beginDateTime = beginDateTime.format(DateTimeFormatter.ofPattern("yyyy.MM.dd E hh:mm a")),
+            beginDateTime = beginDateTime,
             isPaid = false,
             isAdult = room.isAdult,
             isPrivateRoom = room.type == LiveRoomType.PRIVATE,
@@ -384,27 +385,29 @@ class LiveRoomService(
         val room = repository.getLiveRoomAndAccountId(request.roomId, member.id!!)
             ?: throw SodaException("해당하는 라이브가 없습니다.")
 
-        val dateTime = LocalDateTime.now()
-            .atZone(ZoneId.of("UTC"))
-            .withZoneSameInstant(ZoneId.of(request.timezone))
-            .toLocalDateTime()
+        val nowDateTime = LocalDateTime.now()
 
-        val beginDateTime = room.beginDateTime
-            .atZone(ZoneId.of("UTC"))
-            .withZoneSameInstant(ZoneId.of(request.timezone))
-            .toLocalDateTime()
+        if (nowDateTime.plusMinutes(10).isBefore(room.beginDateTime)) {
+            val startAvailableDateTimeString = room.beginDateTime
+                .minusMinutes(10)
+                .atZone(ZoneId.of("UTC"))
+                .withZoneSameInstant(ZoneId.of("Asia/Seoul"))
+                .format(DateTimeFormatter.ofPattern("yyyy년 MM월 dd일 (E) a HH시 mm분").withLocale(Locale.KOREAN))
 
-        if (dateTime.plusMinutes(10).isBefore(beginDateTime)) {
-            val startAvailableDateTimeString = beginDateTime.minusMinutes(10).format(
-                DateTimeFormatter.ofPattern("yyyy.MM.dd E hh:mm a")
-            )
             throw SodaException("$startAvailableDateTimeString 이후에 시작할 수 있습니다.")
         }
 
+        val dateTime = nowDateTime
+            .atZone(ZoneId.of("UTC"))
+            .withZoneSameInstant(ZoneId.of(request.timezone))
+            .toLocalDateTime()
+
         room.channelName = "SODA_LIVE_CHANNEL_" +
             "${member.id}_${dateTime.year}_${dateTime.month}_${dateTime.dayOfMonth}_" +
             "${dateTime.hour}_${dateTime.minute}"
 
+        room.beginDateTime = nowDateTime
+
         applicationEventPublisher.publishEvent(
             FcmEvent(
                 type = FcmEventType.START_LIVE,