add timezone based region detection

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -6,6 +6,7 @@ import FlutterMacOS
 import Foundation
 
 import device_info_plus
+import flutter_timezone
 import mobile_scanner
 import package_info_plus
 import path_provider_foundation
@@ -21,6 +22,7 @@ import window_manager
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   DeviceInfoPlusMacosPlugin.register(with: registry.registrar(forPlugin: "DeviceInfoPlusMacosPlugin"))
+  FlutterTimezonePlugin.register(with: registry.registrar(forPlugin: "FlutterTimezonePlugin"))
   MobileScannerPlugin.register(with: registry.registrar(forPlugin: "MobileScannerPlugin"))
   FPPPackageInfoPlusPlugin.register(with: registry.registrar(forPlugin: "FPPPackageInfoPlusPlugin"))
   PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))

pubspec.lock

@@ -632,6 +632,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_timezone:
+    dependency: transitive
+    description:
+      name: flutter_timezone
+      sha256: "06b35132c98fa188db3c4b654b7e1af7ccd01dfe12a004d58be423357605fb24"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.8"
   flutter_web_plugins:
     dependency: transitive
     description: flutter
@@ -1610,6 +1618,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.3"
+  timezone:
+    dependency: transitive
+    description:
+      name: timezone
+      sha256: "1cfd8ddc2d1cfd836bc93e67b9be88c3adaeca6f40a00ca999104c30693cdca0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.9.2"
+  timezone_to_country:
+    dependency: "direct main"
+    description:
+      name: timezone_to_country
+      sha256: "9798e68d94276006484f5aba5a69b3b83f74459243693d23050d39155d8822fc"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
   timing:
     dependency: transitive
     description:

pubspec.yaml

@@ -75,6 +75,7 @@ dependencies:
   fluentui_system_icons: ^1.1.226
   circle_flags: ^4.0.2
   http: ^1.2.0
+  timezone_to_country: ^2.1.0
 
 dev_dependencies:
   flutter_test: