diff --git a/models/chatRooms.js b/models/chatRooms.js
deleted file mode 100644
index 6c50957f10e2b9950b367b7dbe9a2683239662c2..0000000000000000000000000000000000000000
--- a/models/chatRooms.js
+++ /dev/null
@@ -1,23 +0,0 @@
-const mongoose = require('mongoose');
-
-// MongoDB 梨꾪똿諛� �ㅽ궎留� �섏젙 (FCM �좏겙�� 諛곗뿴濡� 愿�由�)
-const chatRoomsSchema = new mongoose.Schema({
-  chatRoomId: { type: String, required: true, unique: true },
-  chatRoomName: { type: String, required: true },
-  messages: [{
-    sender: String,
-    message: String,
-    timestamp: Date,
-    type: { type: String, default: 'message' }, // 湲곕낯媛믪� 'message', �ㅻⅨ 媛믪쑝濡� 'join', 'leave' 媛���
-  }],
-  participants: [{
-    name: { type: String, required: true },
-    fcmTokens: { type: [String], default: [] }, // FCM �좏겙 諛곗뿴
-  }],
-  lastReadAt: { type: Map, of: Date },
-  lastReadLogId: { type: Map, of: String },
-  isOnline: { type: Map, of: Boolean },
-}, { collection: 'chatrooms' });
-
-const ChatRoom = mongoose.model('ChatRooms', chatRoomsSchema);
-module.exports = ChatRoom;
\ No newline at end of file
diff --git a/models/index.js b/models/index.js
index 94c499b692695e50655f62d04237f64ae8a8962e..70650a38212c453e5ff4147587dc8cd450b6f659 100644
--- a/models/index.js
+++ b/models/index.js
@@ -7,7 +7,7 @@ const Meeting = require('./Meeting');
 const Friend = require('./Friend');
 const FcmToken = require('./fcmToken');
 const MeetingParticipant = require('./MeetingParticipant');
-const ChatRooms = require('./ChatRooms');
+// const ChatRooms = require('./ChatRooms');
 
 // 愿�怨� �ㅼ젙
 Friend.belongsTo(User, { foreignKey: 'requester_id', as: 'requester' }); // 移쒓뎄 �붿껌�� 蹂대궦 �ъ슜��
@@ -35,12 +35,6 @@ module.exports = {
     Schedule,
     Meeting,
     MeetingParticipant,
-    ChatRooms,
-  sequelize,
-  User,
-  Schedule,
-  Meeting,
-  MeetingParticipant,
   Friend,
   FcmToken, 
 };
diff --git a/package-lock.json b/package-lock.json
index 0d88e6dd404804a6a24730ef20bf0a8275b47975..5897dcb4fcf59688ccc6e80a04ff675d55dd6e54 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11447,7 +11447,7 @@
       "version": "4.4.1",
       "resolved": "https://registry.npmjs.org/fast-xml-parser/-/fast-xml-parser-4.4.1.tgz",
       "integrity": "sha512-xkjOecfnKGkSsOwtZ5Pz7Us/T6mrbPQrq0nh+aCO5V9nk5NLWmasAHumTKjiPJPWANe+kAZ84Jc8ooJkzZ88Sw==",
-      "dev": true,
+      "devOptional": true,
       "funding": [
         {
           "type": "github",
@@ -11986,6 +11986,7 @@
       "version": "5.3.0",
       "resolved": "https://registry.npmjs.org/gcp-metadata/-/gcp-metadata-5.3.0.tgz",
       "integrity": "sha512-FNTkdNEnBdlqF2oatizolQqNANMrcqJt6AAYt99B3y1aLLC8Hc5IOBb+ZnnzllodEEf6xMBp6wRcBbc16fa65w==",
+      "dev": true,
       "license": "Apache-2.0",
       "optional": true,
       "peer": true,
@@ -12001,6 +12002,7 @@
       "version": "5.1.3",
       "resolved": "https://registry.npmjs.org/gaxios/-/gaxios-5.1.3.tgz",
       "integrity": "sha512-95hVgBRgEIRQQQHIbnxBXeHbW4TqFk4ZDJW7wmVtvYar72FdhRIo1UGOLS2eRAKCPEdPBWu+M7+A33D9CdX9rA==",
+      "dev": true,
       "license": "Apache-2.0",
       "optional": true,
       "peer": true,
@@ -13270,7 +13272,6 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/is-stream/-/is-stream-2.0.1.tgz",
       "integrity": "sha512-hFoiJiTl63nn+kstHGBtewWSKnQLpyb155KHheA1l39uvtO9nWIop1p3udqPcUd/xbF1VLMO4n7OI6p7RbngDg==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -17498,7 +17499,7 @@
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-3.1.0.tgz",
       "integrity": "sha512-TYOanM3wGwNGsZN2cVTYPArw454xnXj5qmWF1bEoAc4+cU/ol7GVh7odevjp1FNHduHc3KZMcFduxU5Xc6uJRQ==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "dependencies": {
         "yocto-queue": "^0.1.0"
@@ -20299,7 +20300,7 @@
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/strnum/-/strnum-1.0.5.tgz",
       "integrity": "sha512-J8bbNyKKXl5qYcR36TIO8W3mVGVHrmmxsd5PAItGkmyzwJvybiw2IVq5nqd0i4LSNSkB/sx9VHllbfFdr9k1JA==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT"
     },
     "node_modules/stubs": {
@@ -21140,7 +21141,6 @@
       "version": "2.8.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
       "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
-      "dev": true,
       "license": "0BSD"
     },
     "node_modules/tsutils": {
@@ -22140,7 +22140,7 @@
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
       "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "engines": {
         "node": ">=10"
diff --git a/routes/schedule.js b/routes/schedule.js
index 35da45e5004555891dc1baf16e8cd53d7982d6fb..59f36a56fcfd920754d435cbe068b8538cd26293 100644
--- a/routes/schedule.js
+++ b/routes/schedule.js
@@ -20,7 +20,7 @@ router.get('/all', ScheduleController.getAllSchedules);
  * 媛쒕퀎 �ㅼ�以� 議고쉶
  * Get /api/schedule/:id
  */
-router.get('/:id', ScheduleController.getScheduleById);
+router.get('/:id', ScheduleController.getScheduleByTimeIdx);
 
 /**
  * �ㅼ�以� �앹꽦
@@ -32,13 +32,13 @@ router.post('/', ScheduleController.createSchedule);
  * �ㅼ�以� �섏젙
  * PUT /api/schedule/:id
  */
-router.put('/:id', ScheduleController.updateSchedule);
+router.put('/:id', ScheduleController.updateSchedules);
 
 /**
  * �ㅼ�以� ��젣
  * DELETE /api/schedule/:id
  */
-router.delete('/:id', ScheduleController.deleteSchedule);
+router.delete('/:id', ScheduleController.deleteSchedules);
 
 
 module.exports = router;
\ No newline at end of file
diff --git a/schemas/ChatRooms.js b/schemas/ChatRooms.js
index f4a963ef66b49866bd3cc4ebb01220effa3295ef..b86c58eec8e35d9532979284e486f77dbcb13796 100644
--- a/schemas/ChatRooms.js
+++ b/schemas/ChatRooms.js
@@ -1,27 +1,23 @@
-// schemas/ChatRoom.js
-
 const mongoose = require('mongoose');
 
-const ChatRoomSchema = new mongoose.Schema({
-  name: {
-    type: String,
-    required: true,
-  },
-  meeting_id: {
-    type: Number, // SQL�� Meetings �뚯씠釉� ID 李몄“
-    default: null,
-  },
-  type: {
-    type: String,
-    enum: ['OPEN', 'CLOSE'],
-    required: true,
-  },
-  created_by: {
-    type: Number, // SQL�� Users �뚯씠釉� ID 李몄“
-    required: true,
-  },
-}, {
-  timestamps: true, // createdAt, updatedAt �먮룞 愿�由�
-});
+// MongoDB 梨꾪똿諛� �ㅽ궎留� �섏젙 (FCM �좏겙�� 諛곗뿴濡� 愿�由�)
+const chatRoomsSchema = new mongoose.Schema({
+  chatRoomId: { type: String, required: true, unique: true },
+  chatRoomName: { type: String, required: true },
+  messages: [{
+    sender: String,
+    message: String,
+    timestamp: Date,
+    type: { type: String, default: 'message' }, // 湲곕낯媛믪� 'message', �ㅻⅨ 媛믪쑝濡� 'join', 'leave' 媛���
+  }],
+  participants: [{
+    name: { type: String, required: true },
+    fcmTokens: { type: [String], default: [] }, // FCM �좏겙 諛곗뿴
+  }],
+  lastReadAt: { type: Map, of: Date },
+  lastReadLogId: { type: Map, of: String },
+  isOnline: { type: Map, of: Boolean },
+}, { collection: 'chatrooms' });
 
-module.exports = mongoose.model('ChatRoom', ChatRoomSchema);
+const ChatRooms = mongoose.model('ChatRooms', chatRoomsSchema);
+module.exports = ChatRooms;
\ No newline at end of file
diff --git a/services/chatService.js b/services/chatService.js
index e53ceaa0c5dd4e4c329fe5d6765de8de7efd6c99..8a47e9b36db18dea62b2e6fb4e96fbbbaff28b0d 100644
--- a/services/chatService.js
+++ b/services/chatService.js
@@ -1,4 +1,4 @@
-const ChatRoom = require('../models/ChatRooms');
+const ChatRooms = require('../schemas/ChatRooms');
 const { v4: uuidv4 } = require('uuid');
 
 class ChatService {
@@ -6,7 +6,7 @@ class ChatService {
   async createChatRoom({ meeting_id, participants, chatRoomName }) {
   try {
     const chatRoomId = uuidv4();
-    const newRoom = new ChatRoom({
+    const newRoom = new ChatRooms({
       chatRoomId,
       chatRoomName,
       meeting_id,
@@ -31,7 +31,7 @@ class ChatService {
 
   // 梨꾪똿諛� 紐⑸줉 議고쉶
   async getChatRooms() {
-    const rooms = await ChatRoom.find({}, { chatRoomId: 1, chatRoomName: 1, messages: { $slice: -1 } });
+    const rooms = await ChatRooms.find({}, { chatRoomId: 1, chatRoomName: 1, messages: { $slice: -1 } });
     return rooms.map(room => {
       const lastMessage = room.messages[0] || {};
       return {
@@ -48,7 +48,7 @@ class ChatService {
 
   // �ъ슜�� �곹깭 �낅뜲�댄듃
   async updateStatus(chatRoomId, nickname, isOnline) {
-    await ChatRoom.updateOne(
+    await ChatRooms.updateOne(
       { chatRoomId, "participants.name": nickname },
       { $set: { [`isOnline.${nickname}`]: isOnline } }
     );
@@ -57,7 +57,7 @@ class ChatService {
   // �쎌쓬 �곹깭 �낅뜲�댄듃
   async updateReadStatus(chatRoomId, nickname) {
     const now = new Date();
-    await ChatRoom.updateOne(
+    await ChatRooms.updateOne(
       { chatRoomId, "participants.name": nickname },
       { $set: { [`lastReadAt.${nickname}`]: now } }
     );
@@ -65,14 +65,14 @@ class ChatService {
 
   // �쎌� �딆� 硫붿떆吏� 議고쉶
   async getUnreadMessages(nickname) {
-    const chatRooms = await ChatRoom.find({ "participants.name": nickname });
-    return await Promise.all(chatRooms.map(async (chatRoom) => {
-      const lastReadAt = chatRoom.lastReadAt.get(nickname) || new Date(0);
-      const unreadMessagesCount = chatRoom.messages.filter(message => 
+    const chatRooms = await ChatRooms.find({ "participants.name": nickname });
+    return await Promise.all(chatRooms.map(async (chatRooms) => {
+      const lastReadAt = chatRooms.lastReadAt.get(nickname) || new Date(0);
+      const unreadMessagesCount = chatRooms.messages.filter(message => 
         message.timestamp > lastReadAt
       ).length;
       return {
-        chatRoomId: chatRoom.chatRoomId,
+        chatRoomId: chatRooms.chatRoomId,
         unreadCount: unreadMessagesCount,
       };
     }));
@@ -80,14 +80,14 @@ class ChatService {
 
   // �쎌� �딆� 硫붿떆吏� �� 議고쉶
   async getUnreadCount(chatRoomId) {
-    const chatRoom = await ChatRoom.findOne({ chatRoomId });
-    if (!chatRoom) {
+    const chatRooms = await ChatRooms.findOne({ chatRoomId });
+    if (!chatRooms) {
       throw new Error('Chat room not found');
     }
 
-    const unreadCounts = chatRoom.participants
-      .filter(participant => chatRoom.lastReadLogId.has(participant.name)) // Map�� 議댁옱�섎뒗 �ㅻ쭔 泥섎━
-      .map(participant => chatRoom.lastReadLogId.get(participant.name)) // lastReadLogId 媛� 異붿텧
+    const unreadCounts = chatRooms.participants
+      .filter(participant => chatRooms.lastReadLogId.has(participant.name)) // Map�� 議댁옱�섎뒗 �ㅻ쭔 泥섎━
+      .map(participant => chatRooms.lastReadLogId.get(participant.name)) // lastReadLogId 媛� 異붿텧
       .reduce((acc, logId) => {
         acc[logId] = (acc[logId] || 0) + 1; // logId 湲곗��쇰줈 �깆옣 �잛닔 �꾩쟻
         return acc;
@@ -107,7 +107,7 @@ class ChatService {
 
   // �쎌� 硫붿떆吏� 濡쒓렇 ID �낅뜲�댄듃
   async updateReadLogId(chatRoomId, nickname, logId) {
-    await ChatRoom.updateOne(
+    await ChatRooms.updateOne(
       { chatRoomId, "participants.name": nickname },
       { $set: { [`lastReadLogId.${nickname}`]: logId } }
     );
@@ -115,16 +115,16 @@ class ChatService {
 
   // FCM �좏겙 �낅뜲�댄듃
   async updateFcmToken(chatRoomId, nickname, fcmToken) {
-    const chatRoom = await ChatRoom.findOne({ chatRoomId, "participants.name": nickname });
-    if (!chatRoom) {
+    const chatRooms = await ChatRooms.findOne({ chatRoomId, "participants.name": nickname });
+    if (!chatRooms) {
       throw new Error('Chat room or participant not found');
     }
 
-    const participant = chatRoom.participants.find(p => p.name === nickname);
+    const participant = chatRooms.participants.find(p => p.name === nickname);
     if (participant) {
       if (!participant.fcmTokens.includes(fcmToken)) {
         participant.fcmTokens.push(fcmToken);
-        await chatRoom.save();
+        await chatRooms.save();
       }
     }
   }
@@ -134,13 +134,13 @@ class ChatService {
     let finalLogId = logId;
 
     if (!isOnline && logId === null) {
-      const chatRoom = await ChatRoom.findOne({ chatRoomId });
-      if (chatRoom && chatRoom.messages.length > 0) {
-        finalLogId = chatRoom.messages[chatRoom.messages.length - 1]._id;
+      const chatRooms = await ChatRooms.findOne({ chatRoomId });
+      if (chatRooms && chatRooms.messages.length > 0) {
+        finalLogId = chatRooms.messages[chatRooms.messages.length - 1]._id;
       }
     }
 
-    await ChatRoom.updateOne(
+    await ChatRooms.updateOne(
       { chatRoomId, "participants.name": nickname },
       {
         $set: {
@@ -155,8 +155,8 @@ class ChatService {
   async sendMessage(chatRoomId, sender, messageContent) {
     try {
       // 梨꾪똿諛� 議고쉶
-      const chatRoom = await ChatRoom.findOne({ chatRoomId });
-      if (!chatRoom) {
+      const chatRooms = await ChatRooms.findOne({ chatRoomId });
+      if (!chatRooms) {
         throw new Error('Chat room not found');
       }
 
@@ -167,12 +167,12 @@ class ChatService {
         timestamp: new Date(),
         type: 'message',
       };
-      chatRoom.messages.push(newMessage);
-      await chatRoom.save();
+      chatRooms.messages.push(newMessage);
+      await chatRooms.save();
 
       // �ㅽ봽�쇱씤 �ъ슜�� 李얘린
-      const offlineParticipants = chatRoom.participants.filter(
-        participant => !chatRoom.isOnline[participant.name]
+      const offlineParticipants = chatRooms.participants.filter(
+        participant => !chatRooms.isOnline[participant.name]
       );
 
       // �ㅽ봽�쇱씤 �ъ슜�먮뱾�먭쾶 FCM �몄떆 �뚮┝ �꾩넚
@@ -181,7 +181,7 @@ class ChatService {
         if (tokens.length > 0) {
           const message = {
             notification: {
-              title: `�� 硫붿떆吏�: ${chatRoom.chatRoomName}`,
+              title: `�� 硫붿떆吏�: ${chatRooms.chatRoomName}`,
               body: `${sender}: ${messageContent}`,
             },
             tokens,
diff --git a/services/meetingService.js b/services/meetingService.js
index f3d5e921dcd3b9c612ab1be39b57a421b073fddd..573d41e922257485c6ff45d7389b080e9e7a8f24 100644
--- a/services/meetingService.js
+++ b/services/meetingService.js
@@ -7,7 +7,7 @@ const { v4: uuidv4 } = require('uuid');
 const { Op } = require('sequelize');
 const sequelize = require('../config/sequelize'); // �몃옖��뀡 愿�由щ� �꾪빐 sequelize �몄뒪�댁뒪 �꾩슂
 const { Meeting, MeetingParticipant, User, Schedule, Invite, Friend } = require('../models');
-const ChatRooms = require('../models/ChatRooms');
+const ChatRooms = require('../schemas/ChatRooms');
 const MeetingResponseDTO = require('../dtos/MeetingResponseDTO');
 const MeetingDetailResponseDTO = require('../dtos/MeetingDetailResponseDTO');
 const CreateMeetingRequestDTO = require('../dtos/CreateMeetingRequestDTO');
@@ -51,16 +51,6 @@ class MeetingService {
         const user = await this._findUserWithFcmTokens(created_by);
         const userFcmTokens = user.fcmTokenList.map((fcmToken) => fcmToken.token);
 
-        // �ㅼ�以� 異⑸룎 �뺤씤
-        // const hasConflict = await ScheduleService.checkScheduleOverlap(
-        //     created_by,
-        //     new Date(start_time),
-        //     new Date(end_time)
-        // );
-
-        // if (hasConflict) {
-        //     throw new Error('�ㅼ�以꾩씠 寃뱀묩�덈떎. �ㅻⅨ �쒓컙�� �좏깮�댁<�몄슂.');
-        // }
 
         const hasConflict = await ScheduleService.checkScheduleOverlapByTime(
             created_by,
diff --git a/services/memberService.js b/services/memberService.js
index bf99182e396b34a9e3d81b65d692dca133065734..fceb6b0f7e52c1b640f5b7a20c5afb4f0269e35a 100644
--- a/services/memberService.js
+++ b/services/memberService.js
@@ -1,6 +1,6 @@
 const User = require('../models/User');
 const FcmToken = require('../models/fcmToken');
-const ChatRoom = require('../models/chatRooms');
+const ChatRooms = require('../schemas/ChatRooms');
 
 class MemberService {
   async registerToken(email, fcmToken) {