diff --git a/popcorn/Assets/MyGame/Resources/DontDestroyObject.prefab b/popcorn/Assets/MyGame/Resources/DontDestroyObject.prefab
index bca45d96..dd90047b 100644
--- a/popcorn/Assets/MyGame/Resources/DontDestroyObject.prefab
+++ b/popcorn/Assets/MyGame/Resources/DontDestroyObject.prefab
@@ -27,6 +27,7 @@ Transform:
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
   m_Children:
   - {fileID: 5749156821563996369}
   m_Father: {fileID: 3667080857874733261}
@@ -77,6 +78,7 @@ Transform:
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 746832001}
   m_RootOrder: 0
@@ -98,6 +100,7 @@ GameObject:
   - component: {fileID: 7743573513958854474}
   - component: {fileID: 7825871007626831899}
   - component: {fileID: 7297614168111566820}
+  - component: {fileID: 2346543539818410046}
   m_Layer: 0
   m_Name: DontDestroyObject
   m_TagString: Untagged
@@ -115,6 +118,7 @@ Transform:
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
   m_Children:
   - {fileID: 3320409656134683753}
   - {fileID: 746832001}
@@ -231,6 +235,20 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   maskPrefab: {fileID: 5131953687285211373, guid: 1c993e9707f1a4fada56020be27dde28,
     type: 3}
+--- !u!114 &2346543539818410046
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 3459593390050872226}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 5bdcdf66f82b40ef9d716e19a72f1aad, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  updateTiming: 2
+  saveTiming: 10
 --- !u!1 &8739647597683206087
 GameObject:
   m_ObjectHideFlags: 0
@@ -261,6 +279,7 @@ Transform:
   m_LocalRotation: {x: -0, y: -0, z: -0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
   m_Children:
   - {fileID: 2507803949588325386}
   m_Father: {fileID: 3667080857874733261}
@@ -421,15 +440,15 @@ PrefabInstance:
       objectReference: {fileID: 0}
     m_RemovedComponents: []
   m_SourcePrefab: {fileID: 100100000, guid: 49f4b2509378048e7b7a5c6c0674be9f, type: 3}
---- !u!1 &8461447348824790522 stripped
-GameObject:
-  m_CorrespondingSourceObject: {fileID: 1069859090919850344, guid: 49f4b2509378048e7b7a5c6c0674be9f,
-    type: 3}
-  m_PrefabInstance: {fileID: 8914311020904666258}
-  m_PrefabAsset: {fileID: 0}
 --- !u!4 &2507803949588325386 stripped
 Transform:
   m_CorrespondingSourceObject: {fileID: 6447040043672924312, guid: 49f4b2509378048e7b7a5c6c0674be9f,
     type: 3}
   m_PrefabInstance: {fileID: 8914311020904666258}
   m_PrefabAsset: {fileID: 0}
+--- !u!1 &8461447348824790522 stripped
+GameObject:
+  m_CorrespondingSourceObject: {fileID: 1069859090919850344, guid: 49f4b2509378048e7b7a5c6c0674be9f,
+    type: 3}
+  m_PrefabInstance: {fileID: 8914311020904666258}
+  m_PrefabAsset: {fileID: 0}
diff --git a/popcorn/Assets/MyGame/Scripts/PartTimerManager.cs b/popcorn/Assets/MyGame/Scripts/PartTimerManager.cs
new file mode 100644
index 00000000..f94dd7ea
--- /dev/null
+++ b/popcorn/Assets/MyGame/Scripts/PartTimerManager.cs
@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using UniRx;
+using UniRx.Triggers;
+using UnityEngine;
+
+namespace MyGame.Scripts
+{
+    public class PartTimerManager : SingletonMonoBehaviour<PartTimerManager>
+    {
+        [SerializeField] private int updateTiming = 2;
+        [SerializeField] private int saveTiming = 10;
+        private float saveElapsed;
+        private List<GameData> partTimerList;
+        private void Start()
+        {
+            /*
+             * 起動中の時間＝バイト稼働時間とする仕組み
+             * データ更新は2秒保存は10秒ごと(updateTimingとsaveTimingで変更可能)
+             * 欠点、9秒時点でプレイヤーがタスクキルすると9秒間のバイト加算が無くなる（その間に他のプレイ要素でセーブが入れば加算される
+             * 受け取りが発生した場合、その都市のみ経過時間をリセット
+             */
+            partTimerList = GetPartTimerList();
+            Observable.Timer(TimeSpan.Zero, TimeSpan.FromSeconds(updateTiming)).Subscribe(_ =>
+            {
+                foreach (var cityGameData in partTimerList)
+                {
+                    // 兄弟が在庫を抱えている場合バイトは稼働しない
+                    if (cityGameData.ShopStock.Count > 0)
+                    {
+                        continue;
+                    }
+                    cityGameData.PartTimerElapsed += updateTiming;
+                }
+
+                saveElapsed += updateTiming;
+                if (saveTiming < saveElapsed)
+                {
+                    return;
+                }
+                GameDataManager.SaveGameData();
+                saveElapsed = 0f;
+            }).AddTo(this);
+        }
+
+        public void UpdateList()
+        {
+            partTimerList = GetPartTimerList();
+        }
+
+        private static List<GameData> GetPartTimerList()
+        {
+            var newList = GameDataManager.GameData.CityGameDataDict.Values.Where(data => data.IsFundingCompleted).ToList();
+            if (newList.Count > 0)
+            {
+                newList.Add(GameDataManager.GameData);
+            }
+            return newList;
+        }
+
+        public void ResetTimer()
+        {
+            saveElapsed = 0f;
+        }
+    }
+}
\ No newline at end of file
diff --git a/popcorn/Assets/MyGame/Scripts/PartTimerManager.cs.meta b/popcorn/Assets/MyGame/Scripts/PartTimerManager.cs.meta
new file mode 100644
index 00000000..7ad517bd
--- /dev/null
+++ b/popcorn/Assets/MyGame/Scripts/PartTimerManager.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 5bdcdf66f82b40ef9d716e19a72f1aad
+timeCreated: 1663830554
\ No newline at end of file