enable chrony as default nts provider; use automatic timezond for timezone;

configuration/base.nix

@@ -35,9 +35,6 @@
     wifi.powersave = false;
   };
 
-  # Set your time zone.
-  time.timeZone = "Europe/London";
-
   # Configure network proxy if necessary
   # networking.proxy.default = "http://user:password@proxy:port/";
   # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
@@ -84,6 +81,13 @@
     package = pkgs.mullvad-vpn;
   };
 
+  # Set your time zone.
+  # time.timeZone = "Europe/London";
+  services.automatic-timezoned.enable = true;
+  services.chrony = {
+    enable = true;
+  };
+
   services.fwupd.enable = true;
   services.geoclue2 = {
     enable = true;