Repository: flutter
Issue: No space between am/pm and time in time picker
Labels: framework,f: material design,f: date/time picker,a: internationalization,a: quality,has reproducible steps,team-design,found in release: 3.27,found in release: 3.29

### Steps to reproduce

1. Set supported locale to locale which uses 'a h:mm' pattern (such as Korean).
2. Show time picker dialog.

### Expected results

There should be space between am/pm and time like this.

![Image](https://github.com/user-attachments/assets/df01c313-bc20-46b0-b592-44b80d196c60)

### Actual results

No space between am/pm and time.

![Image](https://github.com/user-attachments/assets/9049e694-aa22-47e4-b944-1ebc557617d8)

### Code sample

<details open><summary>Code sample</summary>

```dart
import 'package:flutter/material.dart';
import 'package:flutter_localizations/flutter_localizations.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: const MyHomePage(),
      localizationsDelegates: const [
        GlobalMaterialLocalizations.delegate,
      ],
      supportedLocales: const [
        Locale('ko'),
      ],
    );
  }
}

class MyHomePage extends StatelessWidget {
  const MyHomePage({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: TextButton(
          onPressed: () {
            showTimePicker(context: context, initialTime: TimeOfDay.now());
          },
          child: Text('Show time picker'),
        ),
      ),
    );
  }
}
```

</details>


### Screenshots or Video

_No response_

### Logs

_No response_

### Flutter Doctor output

<details open><summary>Doctor output</summary>

```console
[✓] Flutter (Channel stable, 3.27.3, on macOS 15.2 24C101 darwin-arm64, locale en-KR)
    • Flutter version 3.27.3 on channel stable at /Users/seunghyun/development/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision c519ee916e (5 days ago), 2025-01-21 10:32:23 -0800
    • Engine revision e672b006cb
    • Dart version 3.6.1
    • DevTools version 2.40.2

[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
    • Android SDK at /Users/seunghyun/Library/Android/Sdk
    • Platform android-35, build-tools 35.0.0
    • ANDROID_HOME = /Users/seunghyun/Library/Android/Sdk
    • Java binary at: /Users/seunghyun/Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 21.0.3+-79915917-b509.11)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 16.2)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 16C5032a
    • CocoaPods version 1.16.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2024.2)
    • Android Studio at /Users/seunghyun/Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 21.0.3+-79915917-b509.11)

[✓] Android Studio (version 2024.2)
    • Android Studio at
      /Users/seunghyun/Library/Caches/JetBrains/Toolbox/backup/AndroidStudio-242.23339.11.2421.12550806-1214249137908452877
      7/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 21.0.3+-79915917-b509.11)

[✓] IntelliJ IDEA Ultimate Edition (version 2024.3.1.1)
    • IntelliJ at /Users/seunghyun/Applications/IntelliJ IDEA Ultimate.app
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart

[✓] VS Code (version 1.96.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.102.0

[✓] Connected device (4 available)
    • Seunghyun’s iPad (mobile)       • 00008020-001B59413A83002E            • ios            • iOS 18.2.1 22C161
    • iPhone 14 Pro (mobile)          • 8E7DC275-4B13-4AC7-9A7A-F3E302A136C5 • ios            •
      com.apple.CoreSimulator.SimRuntime.iOS-18-2 (simulator)
    • Mac Designed for iPad (desktop) • mac-designed-for-ipad                • darwin         • macOS 15.2 24C101
      darwin-arm64
    • Chrome (web)                    • chrome                               • web-javascript • Google Chrome
      131.0.6778.265

[✓] Network resources
    • All expected network resources are available.

• No issues found!
```

</details>