function custom_time_based_welcome_message() {
    // Set timezone to Jakarta
    date_default_timezone_set('Asia/Jakarta');

    // Get current hour in 24-hour format
    $hour = date('G');

    // Get current user's display name
    $current_user = wp_get_current_user();
    $user_name = $current_user->display_name;

    // Determine the appropriate greeting based on the hour
    if ($hour >= 5 && $hour = 12 && $hour = 18 && $hour <= 21) {
        $message = "Selamat Sore";
    } else {
        $message = "Selamat Malam";
    }

    // Display the greeting message with the user's name
    echo &#039;<p>' . $message . ' ' . $user_name . ' 😊 Selamat bekerja di dashboard WordPress Anda.</p>';
}
add_action('admin_notices', 'custom_time_based_welcome_message');