diff --git a/NebulaNetwork/PacketProcessors/GameStates/GameStateSaveInfoProcessor.cs b/NebulaNetwork/PacketProcessors/GameStates/GameStateSaveInfoProcessor.cs
index 3630fdc76..3d4396d21 100644
--- a/NebulaNetwork/PacketProcessors/GameStates/GameStateSaveInfoProcessor.cs
+++ b/NebulaNetwork/PacketProcessors/GameStates/GameStateSaveInfoProcessor.cs
@@ -1,9 +1,12 @@
 #region
 
+using System;
 using NebulaAPI.Packets;
+using NebulaModel.Logger;
 using NebulaModel.Networking;
 using NebulaModel.Packets;
 using NebulaModel.Packets.GameStates;
+using NebulaWorld;
 using NebulaWorld.GameStates;
 
 #endregion
@@ -16,5 +19,6 @@ public class GameStateSaveInfoProcessor : PacketProcessor<GameStateSaveInfoPacke
     protected override void ProcessPacket(GameStateSaveInfoPacket packet, NebulaConnection conn)
     {
         GameStatesManager.LastSaveTime = packet.LastSaveTime;
+        Log.Info("LastSaveTime: " + DateTimeOffset.FromUnixTimeSeconds(packet.LastSaveTime).ToString());
     }
 }
diff --git a/NebulaPatcher/Patches/Dynamic/GameSave_Patch.cs b/NebulaPatcher/Patches/Dynamic/GameSave_Patch.cs
index 8026cd430..bdbe4f8c8 100644
--- a/NebulaPatcher/Patches/Dynamic/GameSave_Patch.cs
+++ b/NebulaPatcher/Patches/Dynamic/GameSave_Patch.cs
@@ -1,5 +1,6 @@
 #region
 
+using System;
 using System.Diagnostics.CodeAnalysis;
 using HarmonyLib;
 using NebulaModel;
@@ -49,8 +50,8 @@ public static void SaveCurrentGame_Postfix()
                 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));
+        GameStatesManager.LastSaveTime = DateTimeOffset.UtcNow.ToUnixTimeSeconds();
+        Multiplayer.Session.Server.SendPacket(new GameStateSaveInfoPacket(GameStatesManager.LastSaveTime));
     }
 
     [HarmonyPrefix]
@@ -96,7 +97,7 @@ public static void LoadCurrentGame_Postfix(bool __result)
         }
         if (Multiplayer.IsActive && Multiplayer.Session.LocalPlayer.IsHost)
         {
-            GameStatesManager.LastSaveTime = GameMain.gameTick;
+            GameStatesManager.LastSaveTime = DateTimeOffset.UtcNow.ToUnixTimeSeconds();
         }
     }
 }
diff --git a/NebulaPatcher/Patches/Dynamic/UIEscMenu_Patch.cs b/NebulaPatcher/Patches/Dynamic/UIEscMenu_Patch.cs
index b8fc5e827..bf56e4c4e 100644
--- a/NebulaPatcher/Patches/Dynamic/UIEscMenu_Patch.cs
+++ b/NebulaPatcher/Patches/Dynamic/UIEscMenu_Patch.cs
@@ -1,5 +1,6 @@
 #region
 
+using System;
 using System.Diagnostics.CodeAnalysis;
 using System.Threading;
 using HarmonyLib;
@@ -38,8 +39,8 @@ 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 timeSinceSave = DateTimeOffset.UtcNow.ToUnixTimeSeconds() - GameStatesManager.LastSaveTime;
+        var second = (int)(timeSinceSave);
         var minute = second / 60;
         var hour = minute / 60;
         var saveBtnText = "存档时间".Translate() + $" {hour}h{minute % 60}m{second % 60}s ago";
diff --git a/NebulaWorld/GameStates/GameStatesManager.cs b/NebulaWorld/GameStates/GameStatesManager.cs
index a8d655c30..13902d1f8 100644
--- a/NebulaWorld/GameStates/GameStatesManager.cs
+++ b/NebulaWorld/GameStates/GameStatesManager.cs
@@ -19,7 +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 long LastSaveTime { get; set; } // UnixTimeSeconds
     public static GameDesc NewGameDesc { get; set; }
     public static int FragmentSize { get; set; }