diff --git a/NebulaModel/Packets/GameStates/GameStateSaveInfoPacket.cs b/NebulaModel/Packets/GameStates/GameStateSaveInfoPacket.cs
new file mode 100644
index 000000000..3c9aec684
--- /dev/null
+++ b/NebulaModel/Packets/GameStates/GameStateSaveInfoPacket.cs
@@ -0,0 +1,20 @@
+#region
+
+using NebulaAPI.Packets;
+
+#endregion
+
+namespace NebulaModel.Packets.GameStates;
+
+[HidePacketInDebugLogs]
+public class GameStateSaveInfoPacket
+{
+    public GameStateSaveInfoPacket() { }
+
+    public GameStateSaveInfoPacket(long lastSaveTime)
+    {
+        LastSaveTime = lastSaveTime;
+    }
+
+    public long LastSaveTime { get; set; }
+}
diff --git a/NebulaNetwork/PacketProcessors/GameStates/GameStateSaveInfoProcessor.cs b/NebulaNetwork/PacketProcessors/GameStates/GameStateSaveInfoProcessor.cs
new file mode 100644
index 000000000..3630fdc76
--- /dev/null
+++ b/NebulaNetwork/PacketProcessors/GameStates/GameStateSaveInfoProcessor.cs
@@ -0,0 +1,20 @@
+#region
+
+using NebulaAPI.Packets;
+using NebulaModel.Networking;
+using NebulaModel.Packets;
+using NebulaModel.Packets.GameStates;
+using NebulaWorld.GameStates;
+
+#endregion
+
+namespace NebulaNetwork.PacketProcessors.GameStates;
+
+[RegisterPacketProcessor]
+public class GameStateSaveInfoProcessor : PacketProcessor<GameStateSaveInfoPacket>
+{
+    protected override void ProcessPacket(GameStateSaveInfoPacket packet, NebulaConnection conn)
+    {
+        GameStatesManager.LastSaveTime = packet.LastSaveTime;
+    }
+}
diff --git a/NebulaNetwork/PacketProcessors/Session/GlobalGameDataRequestProcessor.cs b/NebulaNetwork/PacketProcessors/Session/GlobalGameDataRequestProcessor.cs
index 29a0b5daa..19cb8e1f8 100644
--- a/NebulaNetwork/PacketProcessors/Session/GlobalGameDataRequestProcessor.cs
+++ b/NebulaNetwork/PacketProcessors/Session/GlobalGameDataRequestProcessor.cs
@@ -3,7 +3,9 @@
 using NebulaAPI.Packets;
 using NebulaModel.Networking;
 using NebulaModel.Packets;
+using NebulaModel.Packets.GameStates;
 using NebulaModel.Packets.Session;
+using NebulaWorld.GameStates;
 
 #endregion
 
@@ -74,5 +76,7 @@ protected override void ProcessPacket(GlobalGameDataRequest packet, NebulaConnec
             conn.SendPacket(new GlobalGameDataResponse(
                 GlobalGameDataResponse.EDataType.Ready, writer.CloseAndGetBytes()));
         }
+
+        conn.SendPacket(new GameStateSaveInfoPacket(GameStatesManager.LastSaveTime));
     }
 }
diff --git a/NebulaPatcher/Patches/Dynamic/GameSave_Patch.cs b/NebulaPatcher/Patches/Dynamic/GameSave_Patch.cs
index f446cb062..8026cd430 100644
--- a/NebulaPatcher/Patches/Dynamic/GameSave_Patch.cs
+++ b/NebulaPatcher/Patches/Dynamic/GameSave_Patch.cs
@@ -1,9 +1,11 @@
 #region
 
+using System.Diagnostics.CodeAnalysis;
 using HarmonyLib;
 using NebulaModel;
-using NebulaNetwork;
+using NebulaModel.Packets.GameStates;
 using NebulaWorld;
+using NebulaWorld.GameStates;
 
 #endregion
 
@@ -46,6 +48,9 @@ public static void SaveCurrentGame_Postfix()
             (GameMain.mainPlayer.sandCount, Multiplayer.Session.LocalPlayer.Data.Mecha.SandCount) = (
                 Multiplayer.Session.LocalPlayer.Data.Mecha.SandCount, GameMain.mainPlayer.sandCount);
         }
+        // Update last save time in clients
+        GameStatesManager.LastSaveTime = GameMain.gameTick;
+        Multiplayer.Session.Server.SendPacket(new GameStateSaveInfoPacket(GameMain.gameTick));
     }
 
     [HarmonyPrefix]
@@ -66,6 +71,7 @@ public static bool SaveAsLastExit_Prefix()
 
     [HarmonyPostfix]
     [HarmonyPatch(nameof(GameSave.LoadCurrentGame))]
+    [SuppressMessage("Style", "IDE1006:Naming Styles")]
     public static void LoadCurrentGame_Postfix(bool __result)
     {
         // If loading success, check and correct offset for all inserters
@@ -88,5 +94,9 @@ public static void LoadCurrentGame_Postfix(bool __result)
                 }
             }
         }
+        if (Multiplayer.IsActive && Multiplayer.Session.LocalPlayer.IsHost)
+        {
+            GameStatesManager.LastSaveTime = GameMain.gameTick;
+        }
     }
 }
diff --git a/NebulaPatcher/Patches/Dynamic/UIEscMenu_Patch.cs b/NebulaPatcher/Patches/Dynamic/UIEscMenu_Patch.cs
index a2a0ce1b4..b8fc5e827 100644
--- a/NebulaPatcher/Patches/Dynamic/UIEscMenu_Patch.cs
+++ b/NebulaPatcher/Patches/Dynamic/UIEscMenu_Patch.cs
@@ -6,6 +6,7 @@
 using NebulaModel.Packets.Players;
 using NebulaPatcher.Patches.Transpilers;
 using NebulaWorld;
+using NebulaWorld.GameStates;
 using UnityEngine;
 using UnityEngine.UI;
 
@@ -30,6 +31,21 @@ public static void _OnOpen_Prefix(UIEscMenu __instance)
         SetButtonEnableState(loadGameWindowButton, !Multiplayer.IsActive);
     }
 
+    [HarmonyPostfix]
+    [HarmonyPatch(nameof(UIEscMenu._OnOpen))]
+    [SuppressMessage("Style", "IDE1006:Naming Styles", Justification = "Original Function Name")]
+    public static void _OnOpen_Postfix(UIEscMenu __instance)
+    {
+        if (!Multiplayer.IsActive || Multiplayer.Session.LocalPlayer.IsHost) return;
+
+        var timeSinceSave = GameMain.gameTick - GameStatesManager.LastSaveTime;
+        var second = (int)(timeSinceSave / 60L);
+        var minute = second / 60;
+        var hour = minute / 60;
+        var saveBtnText = "存档时间".Translate() + $" {hour}h{minute % 60}m{second % 60}s ago";
+        __instance.button2Text.text = saveBtnText;
+    }
+
     [HarmonyPrefix]
     [HarmonyPatch(nameof(UIEscMenu.OnButton5Click))]
     public static void OnButton5Click_Prefix()
diff --git a/NebulaWorld/GameStates/GameStatesManager.cs b/NebulaWorld/GameStates/GameStatesManager.cs
index f630b6b23..a8d655c30 100644
--- a/NebulaWorld/GameStates/GameStatesManager.cs
+++ b/NebulaWorld/GameStates/GameStatesManager.cs
@@ -19,6 +19,7 @@ public class GameStatesManager : IDisposable
     public static long RealGameTick => GameMain.gameTick;
     public static float RealUPS => (float)FPSController.currentUPS;
     public static string ImportedSaveName { get; set; }
+    public static long LastSaveTime { get; set; }
     public static GameDesc NewGameDesc { get; set; }
     public static int FragmentSize { get; set; }
 
@@ -33,7 +34,7 @@ public class GameStatesManager : IDisposable
 
     public void Dispose()
     {
-        FragmentSize = 0;
+        LastSaveTime = FragmentSize = 0;
         SandboxToolsEnabled = false;
         HistoryBinaryData = null;
         GalacticTransportBinaryData = null;