diff --git a/src/trudex/application/bot/admin_dialogs/tests.py b/src/trudex/application/bot/admin_dialogs/tests.py
index f490495..fb2faf3 100644
--- a/src/trudex/application/bot/admin_dialogs/tests.py
+++ b/src/trudex/application/bot/admin_dialogs/tests.py
@@ -22,7 +22,7 @@ from trudex.infrastructure.database.repo.test_attempt import TestAttemptReposito
 from trudex.infrastructure.utils.config import Config
 from trudex.infrastructure.utils.qr_generator import generate_qr_bytes
 from trudex.infrastructure.utils.test_id_to_hash import encode_id
-from trudex.infrastructure.utils.timezone import MSK_TZ, to_msk
+from trudex.infrastructure.utils.timezone import to_msk
 
 
 @inject
@@ -379,7 +379,7 @@ async def on_date_selected_for_test(_callback, _widget, manager: DialogManager,
         await _callback.answer("❌ Тест не найден")
         return
     
-    expires_at = datetime.combine(selected_date, time.min, tzinfo=MSK_TZ)
+    expires_at = datetime.combine(selected_date, time.min)
     await test_dao.update(test_id, expires_at=expires_at)
     await _callback.answer("✅ Срок действия обновлен")
     await manager.switch_to(AdminTestsSG.test_detail)
diff --git a/src/trudex/application/bot/creator_dialogs/create_test.py b/src/trudex/application/bot/creator_dialogs/create_test.py
index 5c89ef8..513a21c 100644
--- a/src/trudex/application/bot/creator_dialogs/create_test.py
+++ b/src/trudex/application/bot/creator_dialogs/create_test.py
@@ -16,7 +16,7 @@ from trudex.infrastructure.database.dao.option import OptionDAO
 from trudex.infrastructure.database.dao.question import QuestionDAO
 from trudex.infrastructure.database.dao.test import TestDAO
 from trudex.infrastructure.database.repo.test import TestRepository
-from trudex.infrastructure.utils.timezone import MSK_TZ, to_msk
+from trudex.infrastructure.utils.timezone import to_msk
 
 
 async def on_title_input(message: Message, _widget: MessageInput, manager: DialogManager):
@@ -111,7 +111,7 @@ async def on_skip_attempts(_callback: CallbackQuery, _button: Button, manager: D
 
 
 async def on_date_selected(_callback, _widget, manager: DialogManager, selected_date: date):
-    manager.dialog_data["expires_at"] = datetime.combine(selected_date, time.min, tzinfo=MSK_TZ)
+    manager.dialog_data["expires_at"] = datetime.combine(selected_date, time.min)
     await manager.switch_to(CreateTestSG.input_for_group)
 
 
@@ -537,7 +537,7 @@ create_test_dialog = Dialog(
         getter=get_question_type_data,
     ),
     Window(
-        Const("<b>✏️ Правильный ответ</b>\n\n💬 <b>Введите правильный ответ</b> (для проверки будет использоваться точное совпадение):\n<i>(максимум 255 символов)</i>"),
+        Const("<b>✏️ Правильный ответ</b>\n\n💬 <b>Введите правильный ответ</b> (регистр и пробелы игнорируются):\n<i>(максимум 255 символов)</i>"),
         MessageInput(on_correct_answer_input),
         Button(Const("◀️ Назад"), id="back", on_click=on_cancel_question),
         state=CreateTestSG.input_correct_answer,
diff --git a/src/trudex/application/bot/creator_dialogs/tests.py b/src/trudex/application/bot/creator_dialogs/tests.py
index 71465d1..524a95a 100644
--- a/src/trudex/application/bot/creator_dialogs/tests.py
+++ b/src/trudex/application/bot/creator_dialogs/tests.py
@@ -25,7 +25,7 @@ from trudex.infrastructure.database.repo.test_attempt import TestAttemptReposito
 from trudex.infrastructure.utils.config import Config
 from trudex.infrastructure.utils.qr_generator import generate_qr_bytes
 from trudex.infrastructure.utils.test_id_to_hash import encode_id
-from trudex.infrastructure.utils.timezone import MSK_TZ, to_msk
+from trudex.infrastructure.utils.timezone import to_msk
 
 
 @inject
@@ -383,7 +383,7 @@ async def on_date_selected_for_test(_callback, _widget, manager: DialogManager,
         await _callback.answer("❌ Тест не найден")
         return
     
-    expires_at = datetime.combine(selected_date, time.min, tzinfo=MSK_TZ)
+    expires_at = datetime.combine(selected_date, time.min)
     await test_dao.update(test_id, expires_at=expires_at)
     await _callback.answer("✅ Срок действия обновлен")
     await manager.switch_to(CreatorTestsSG.test_detail)
diff --git a/src/trudex/application/bot/handlers.py b/src/trudex/application/bot/handlers.py
index 57fad4d..75b0570 100644
--- a/src/trudex/application/bot/handlers.py
+++ b/src/trudex/application/bot/handlers.py
@@ -17,7 +17,7 @@ from trudex.infrastructure.database.dao.test import TestDAO
 from trudex.infrastructure.database.dao.user import UserDAO
 from trudex.infrastructure.utils.config import Config
 from trudex.infrastructure.utils.test_id_to_hash import decode_id
-from trudex.infrastructure.utils.timezone import now_msk
+from trudex.infrastructure.utils.timezone import now_msk_naive
 
 router = Router()
 
@@ -92,7 +92,7 @@ async def validate_deeplink_test(
     if not test.is_active:
         return False, "❌ Тест деактивирован"
     
-    if test.expires_at and test.expires_at < now_msk():
+    if test.expires_at and test.expires_at < now_msk_naive():
         return False, "❌ Срок действия теста истек"
     
     user = await user_dao.get_by_id(user_id)
diff --git a/src/trudex/application/bot/user_dialogs/main_menu.py b/src/trudex/application/bot/user_dialogs/main_menu.py
index b695639..122e8de 100644
--- a/src/trudex/application/bot/user_dialogs/main_menu.py
+++ b/src/trudex/application/bot/user_dialogs/main_menu.py
@@ -20,7 +20,7 @@ from trudex.infrastructure.database.repo.test_attempt import TestAttemptReposito
 from trudex.infrastructure.utils.config import Config
 from trudex.infrastructure.utils.qr_generator import generate_qr_bytes
 from trudex.infrastructure.utils.test_id_to_hash import encode_id
-from trudex.infrastructure.utils.timezone import now_msk, to_msk
+from trudex.infrastructure.utils.timezone import now_msk, now_msk_naive, to_msk
 from datetime import datetime
 
 
@@ -150,7 +150,7 @@ async def on_name_input(
     result = await user_dao.update(
         user_id=message.from_user.id,
         name=name,
-        name_updated_at=now_msk(),
+        name_updated_at=now_msk_naive(),
     )
     if result:
         await message.answer("✅ Имя обновлено")
@@ -177,7 +177,7 @@ async def on_group_selected(
     result = await user_dao.update(
         user_id=_callback.from_user.id,
         group=int(item_id),
-        group_updated_at=now_msk(),
+        group_updated_at=now_msk_naive(),
     )
     if result:
         await _callback.answer("✅ Группа обновлена")
diff --git a/src/trudex/application/bot/user_dialogs/take_test.py b/src/trudex/application/bot/user_dialogs/take_test.py
index 6c40969..8a8a16d 100644
--- a/src/trudex/application/bot/user_dialogs/take_test.py
+++ b/src/trudex/application/bot/user_dialogs/take_test.py
@@ -12,7 +12,7 @@ from trudex.infrastructure.database.dao.user_answer import UserAnswerDAO
 from trudex.infrastructure.database.models import QuestionType
 from trudex.infrastructure.database.repo.test import TestRepository
 from trudex.infrastructure.database.repo.test_attempt import TestAttemptRepository
-from trudex.infrastructure.utils.timezone import now_msk
+from trudex.infrastructure.utils.timezone import now_msk_naive
 
 
 async def get_state_for_question_type(question_type: str):
@@ -50,7 +50,7 @@ async def on_start_test(
         await _callback.answer("❌ Тест деактивирован")
         return
     
-    if test.expires_at and test.expires_at < now_msk():
+    if test.expires_at and test.expires_at < now_msk_naive():
         await _callback.answer("❌ Срок действия теста истек")
         return
     
diff --git a/src/trudex/infrastructure/api/__init__.py b/src/trudex/infrastructure/api/__init__.py
deleted file mode 100644
index 8b13789..0000000
--- a/src/trudex/infrastructure/api/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/src/trudex/infrastructure/database/repo/test_attempt.py b/src/trudex/infrastructure/database/repo/test_attempt.py
index b4fcbd4..1ec61fa 100644
--- a/src/trudex/infrastructure/database/repo/test_attempt.py
+++ b/src/trudex/infrastructure/database/repo/test_attempt.py
@@ -12,7 +12,7 @@ from trudex.infrastructure.database.dto.user_answer import UserAnswerDTO
 from trudex.infrastructure.database.models import \
     TestAttempt as TestAttemptModel
 from trudex.infrastructure.database.models import UserAnswer as UserAnswerModel
-from trudex.infrastructure.utils.timezone import now_msk
+from trudex.infrastructure.utils.timezone import now_msk_naive
 
 
 @final
@@ -132,7 +132,7 @@ class TestAttemptRepository:
     async def finish_attempt(self, attempt_id: int, score: int, is_passed: bool) -> TestAttempt | None:
         return await self.attempt_dao.update(
             attempt_id=attempt_id,
-            finished_at=now_msk(),
+            finished_at=now_msk_naive(),
             score=score,
             is_passed=is_passed
         )
diff --git a/src/trudex/infrastructure/scheduling/tasks.py b/src/trudex/infrastructure/scheduling/tasks.py
index 0a99ccf..5667ccb 100644
--- a/src/trudex/infrastructure/scheduling/tasks.py
+++ b/src/trudex/infrastructure/scheduling/tasks.py
@@ -1,7 +1,7 @@
 from dishka import AsyncContainer
 
 from trudex.infrastructure.database.dao.test import TestDAO
-from trudex.infrastructure.utils.timezone import now_msk
+from trudex.infrastructure.utils.timezone import now_msk_naive
 
 
 async def deactivate_expired_tests(container: AsyncContainer):
@@ -11,5 +11,5 @@ async def deactivate_expired_tests(container: AsyncContainer):
         tests = await test_dao.get_all()
         
         for test in tests:
-            if test.expires_at and test.expires_at < now_msk() and test.is_active:
+            if test.expires_at and test.expires_at < now_msk_naive() and test.is_active:
                 await test_dao.update(test.id, is_active=False)
diff --git a/src/trudex/infrastructure/utils/timezone.py b/src/trudex/infrastructure/utils/timezone.py
index dea7c88..6236e2b 100644
--- a/src/trudex/infrastructure/utils/timezone.py
+++ b/src/trudex/infrastructure/utils/timezone.py
@@ -8,6 +8,11 @@ def now_msk() -> datetime:
     return datetime.now(MSK_TZ)
 
 
+def now_msk_naive() -> datetime:
+    """Возвращает текущее время в МСК без timezone info (для сохранения в БД)."""
+    return datetime.now(MSK_TZ).replace(tzinfo=None)
+
+
 def to_msk(dt: datetime | None) -> datetime | None:
     if dt is None:
         return None