diff --git a/app/Models/Country.php b/app/Models/Country.php
new file mode 100644
index 0000000..99c24ff
--- /dev/null
+++ b/app/Models/Country.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Country extends Model
+{
+    protected $fillable = ['country_code', 'name'];
+}
diff --git a/app/Models/NonWorkingDays.php b/app/Models/NonWorkingDays.php
new file mode 100644
index 0000000..f0b314b
--- /dev/null
+++ b/app/Models/NonWorkingDays.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class NonWorkingDays extends Model
+{
+    protected $fillable = ['country_id', 'non_working_date'];
+}
diff --git a/database/migrations/2024_08_04_172406_create_countries.php b/database/migrations/2024_08_04_172406_create_countries.php
new file mode 100644
index 0000000..49d3958
--- /dev/null
+++ b/database/migrations/2024_08_04_172406_create_countries.php
@@ -0,0 +1,29 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('countries', function (Blueprint $table) {
+            $table->id();
+            $table->string('name');
+            $table->string('country_code', 2)->unique();
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('countries');
+    }
+};
diff --git a/database/migrations/2024_08_04_172521_create_non_working_days.php b/database/migrations/2024_08_04_172521_create_non_working_days.php
new file mode 100644
index 0000000..cedc35c
--- /dev/null
+++ b/database/migrations/2024_08_04_172521_create_non_working_days.php
@@ -0,0 +1,31 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('non_working_days', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('country_id');
+            $table->foreign('country_id')->references('id')->on('countries')->onDelete('cascade');
+            $table->date('non_working_date');
+            $table->timestamps();
+            $table->unique(['country_id', 'non_working_date']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('non_working_days');
+    }
+};
diff --git a/database/seeders/CountrySeeder.php b/database/seeders/CountrySeeder.php
new file mode 100755
index 0000000..2b12870
--- /dev/null
+++ b/database/seeders/CountrySeeder.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Database\Seeders;
+
+use App\Models\Country;
+use Illuminate\Database\Seeder;
+use Illuminate\Database\UniqueConstraintViolationException;
+
+class CountrySeeder extends Seeder
+{
+    private const array COUNTRIES = [
+        'CZ' => 'Czech Republic',
+    ];
+
+    /**
+     * Run the database seeds.
+     */
+    public function run(): void
+    {
+        foreach (static::COUNTRIES as $countryCode => $countryName) {
+            try {
+                Country::create(['country_code' => $countryCode, 'name' => $countryName]);
+            } catch (UniqueConstraintViolationException $e) {
+                // safe to ignore duplicate entries
+            }
+        }
+        //
+    }
+}