diff --git a/projects/ucap-webmessenger-app/src/assets/i18n/en.json b/projects/ucap-webmessenger-app/src/assets/i18n/en.json
index 57c687db..476cf86f 100644
--- a/projects/ucap-webmessenger-app/src/assets/i18n/en.json
+++ b/projects/ucap-webmessenger-app/src/assets/i18n/en.json
@@ -253,6 +253,8 @@
       "scheduleTypeUpdate": "[Event] Modified",
       "scheduleTypeDelete": "[Event] Deleted",
       "scheduleTypeDefault": "[Event] Processing..",
+      "scheduleTypePrefix": "[Event] ",
+      "scheduleTypeSurfixLeft": " left",
       "showPreviousEvents": "Show previous",
       "moreUnreadEventsWith": "There is unread messages<span class=\"text-warn-color\">({{countOfUnread}})</span>"
     },
diff --git a/projects/ucap-webmessenger-app/src/assets/i18n/ko.json b/projects/ucap-webmessenger-app/src/assets/i18n/ko.json
index 7eeab21d..0fd8399b 100644
--- a/projects/ucap-webmessenger-app/src/assets/i18n/ko.json
+++ b/projects/ucap-webmessenger-app/src/assets/i18n/ko.json
@@ -253,6 +253,8 @@
       "scheduleTypeUpdate": "[이벤트] 수정",
       "scheduleTypeDelete": "[이벤트] 삭제",
       "scheduleTypeDefault": "[이벤트] 조회중..",
+      "scheduleTypePrefix": "[이벤트] ",
+      "scheduleTypeSurfixLeft": " 전 알림",
       "showPreviousEvents": "이전 대화 보기",
       "moreUnreadEventsWith": "안읽은 메시지가 <span class=\"text-warn-color\">({{countOfUnread}})</span>개 더 있습니다."
     },
diff --git a/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/plan.event-json.ts b/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/plan.event-json.ts
index 194e7aa8..dc496388 100644
--- a/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/plan.event-json.ts
+++ b/projects/ucap-webmessenger-protocol-event/src/lib/protocols/event-json/plan.event-json.ts
@@ -4,7 +4,7 @@ import { JsonAnalization } from '@ucap-webmessenger/api';
 export interface PlanEventJson {
   planSeq?: number;
   title?: string;
-  contents?: PlanContentType;
+  contents?: PlanContentType | string;
   date?: string;
   endDate?: string;
   active?: boolean;
@@ -23,7 +23,7 @@ export const decodePlanEventJson: EventJsonDecoder<PlanEventJson> = (
     return {
       planSeq: json.planSeq,
       title: json.title,
-      contents: json.contents as PlanContentType,
+      contents: json.contents,
       date: json.date,
       endDate: json.endDate,
       active: !!json.activeYn && 'Y' === json.activeYn ? true : false
diff --git a/projects/ucap-webmessenger-ui-chat/src/lib/components/message-box/schedule.component.html b/projects/ucap-webmessenger-ui-chat/src/lib/components/message-box/schedule.component.html
index 079e7dcd..30a7a8d6 100644
--- a/projects/ucap-webmessenger-ui-chat/src/lib/components/message-box/schedule.component.html
+++ b/projects/ucap-webmessenger-ui-chat/src/lib/components/message-box/schedule.component.html
@@ -14,7 +14,8 @@
           {{ 'chat.event.scheduleTypeDelete' | translate }}
         </ng-container>
         <ng-container *ngSwitchDefault>
-          {{ 'chat.event.scheduleTypeDefault' | translate }}
+          <!-- {{ 'chat.event.scheduleTypeDefault' | translate }} -->
+          {{ getAlertLeftTime() }}
         </ng-container>
       </ng-container>
     </ng-container>
diff --git a/projects/ucap-webmessenger-ui-chat/src/lib/components/message-box/schedule.component.ts b/projects/ucap-webmessenger-ui-chat/src/lib/components/message-box/schedule.component.ts
index 0e93c281..b476f2c8 100644
--- a/projects/ucap-webmessenger-ui-chat/src/lib/components/message-box/schedule.component.ts
+++ b/projects/ucap-webmessenger-ui-chat/src/lib/components/message-box/schedule.component.ts
@@ -5,6 +5,7 @@ import {
   PlanContentType
 } from '@ucap-webmessenger/protocol-event';
 import moment from 'moment';
+import { TranslateService } from '@ngx-translate/core';
 
 @Component({
   selector: 'ucap-chat-message-box-schedule',
@@ -19,7 +20,7 @@ export class ScheduleComponent implements OnInit {
   date: any;
   endDate: any;
 
-  constructor() {}
+  constructor(private translateService: TranslateService) {}
 
   ngOnInit() {
     if (!!this.message && !!this.message.sentMessageJson) {
@@ -68,4 +69,31 @@ export class ScheduleComponent implements OnInit {
   }
 
   onClickSave(): void {}
+
+  getAlertLeftTime(): string {
+    let content = this.message.sentMessageJson.contents;
+    if (content.indexOf('PLAN_CONTENTS_MINUTE') > -1) {
+      content = content.replace(
+        'PLAN_CONTENTS_MINUTE',
+        this.translateService.instant('common.units.minute')
+      );
+    } else if (content.indexOf('PLAN_CONTENTS_HOUR') > -1) {
+      content = content.replace(
+        'PLAN_CONTENTS_HOUR',
+        this.translateService.instant('common.units.hour')
+      );
+    }
+
+    if (content.indexOf('PLAN_CONTENTS_AFTER') > -1) {
+      content = content.replace(
+        'PLAN_CONTENTS_AFTER',
+        this.translateService.instant('chat.event.scheduleTypeSurfixLeft')
+      );
+    }
+
+    content =
+      this.translateService.instant('chat.event.scheduleTypePrefix') + content;
+
+    return content;
+  }
 }