diff --git a/composer.json b/composer.json
index de727ad..559e68a 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,8 @@
         "ext-json": "*",
         "ext-soap": "*",
         "guzzlehttp/guzzle": "^6.3",
-        "psr/log": "^1.1"
+        "psr/log": "^1.1",
+        "ext-intl": "*"
     },
     "require-dev": {
         "illuminate/support": "5.1 - 5.8",
diff --git a/src/Dispatching/Endpoints/PostOffices/Responses/Lunch.php b/src/Dispatching/Endpoints/PostOffices/Responses/Lunch.php
index 35997b9..210cb6d 100644
--- a/src/Dispatching/Endpoints/PostOffices/Responses/Lunch.php
+++ b/src/Dispatching/Endpoints/PostOffices/Responses/Lunch.php
@@ -19,15 +19,14 @@
 final class Lunch implements Arrayable
 {
     use DataAware;
-
     use TimeIntervalAware;
 
-    private function getBeginValue()
+    protected function getBeginValue()
     {
         return $this->get('begin-lunchtime');
     }
 
-    private function getEndValue()
+    protected function getEndValue()
     {
         return $this->get('end-lunchtime');
     }
diff --git a/src/Dispatching/Endpoints/PostOffices/Responses/TimeIntervalAware.php b/src/Dispatching/Endpoints/PostOffices/Responses/TimeIntervalAware.php
index e076b10..3779fa6 100644
--- a/src/Dispatching/Endpoints/PostOffices/Responses/TimeIntervalAware.php
+++ b/src/Dispatching/Endpoints/PostOffices/Responses/TimeIntervalAware.php
@@ -25,9 +25,9 @@ public function getEnd(): ?string
         return $this->humanizeTime($this->getEndValue());
     }
 
-    private function humanizeTime(string $time): ?string
+    private function humanizeTime(?string $time): ?string
     {
-        if ($this === null) {
+        if ($time === null) {
             return null;
         }
 
diff --git a/src/Dispatching/Endpoints/PostOffices/Responses/WorkingHours.php b/src/Dispatching/Endpoints/PostOffices/Responses/WorkingHours.php
index 7e64118..dc2ebee 100644
--- a/src/Dispatching/Endpoints/PostOffices/Responses/WorkingHours.php
+++ b/src/Dispatching/Endpoints/PostOffices/Responses/WorkingHours.php
@@ -25,7 +25,22 @@ final class WorkingHours implements Arrayable
 
     public function getDayNumber(): ?int
     {
-        return $this->get('weekday-id');
+        return $this->get('weekday-id', 'int');
+    }
+
+    public function getDayName(?string $locale = null): ?string
+    {
+        if (null === $this->getDayNumber()) {
+            return null;
+        }
+
+        if ($this->get('weekday-name')) {
+            return $this->get('weekday-name');
+        }
+
+        return (new \IntlDateFormatter(
+            $locale ?? 'ru_RU', \IntlDateFormatter::NONE, \IntlDateFormatter::NONE, null, null, 'EEEE'
+        ))->format(\strtotime("next Sunday + {$this->getDayNumber()} days"));
     }
 
     /**
@@ -36,12 +51,12 @@ public function getLunches()
         return Instantiator::instantiate(new ArrayOf(Lunch::class), $this->get('lunches'));
     }
 
-    private function getBeginValue()
+    protected function getBeginValue()
     {
         return $this->get('begin-worktime');
     }
 
-    private function getEndValue()
+    protected function getEndValue()
     {
         return $this->get('end-worktime');
     }