diff --git a/flake.nix b/flake.nix
index 031ccbb..e015c41 100755
--- a/flake.nix
+++ b/flake.nix
@@ -178,7 +178,10 @@
           # Hardware
           ./nixos/hardware/lenovo/legion/81fw/Aristotle
 
-          {networking.hostName = "Aristotle";}
+          {
+            networking.hostName = "Aristotle";
+            time.timeZone = "Asia/Shanghai";
+          }
         ];
       };
     };
@@ -198,7 +201,10 @@
 
           ./darwin/hardware/apple/imac/18-3
 
-          {networking.hostName = "Plato";}
+          {
+            networking.hostName = "Plato";
+            time.timeZone = "Asia/Shanghai";
+          }
         ];
       };
     };
diff --git a/users/guanranwang/darwin/profiles/core/default.nix b/users/guanranwang/darwin/profiles/core/default.nix
index b8e10ee..b01e2d9 100644
--- a/users/guanranwang/darwin/profiles/core/default.nix
+++ b/users/guanranwang/darwin/profiles/core/default.nix
@@ -16,7 +16,7 @@
 
   ### Options
   myFlake.darwin.networking.dns.provider = lib.mkDefault "alidns";
-  time.timeZone = lib.mkDefault "Asia/Shanghai";
+
 
   ### Flakes
   imports = [
diff --git a/users/guanranwang/nixos/profiles/core/default.nix b/users/guanranwang/nixos/profiles/core/default.nix
index 9c1236f..6d86929 100644
--- a/users/guanranwang/nixos/profiles/core/default.nix
+++ b/users/guanranwang/nixos/profiles/core/default.nix
@@ -25,7 +25,6 @@
 
   ### Options
   myFlake.nixos.networking.dns.provider = lib.mkDefault "alidns";
-  time.timeZone = lib.mkDefault "Asia/Shanghai";
 
   ### Flakes
   imports = [