diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..99580d0
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,9 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true
diff --git a/Command/ListCommand.php b/Command/ListCommand.php
index 56f66ee..6f41d3e 100644
--- a/Command/ListCommand.php
+++ b/Command/ListCommand.php
@@ -57,7 +57,7 @@ protected function execute(InputInterface $input, OutputInterface $output) {
       }
 
       $table->addRow($row);
-    };
+    }
 
     $table->render();
 
diff --git a/Command/RunCommand.php b/Command/RunCommand.php
index 98150df..385102c 100644
--- a/Command/RunCommand.php
+++ b/Command/RunCommand.php
@@ -41,7 +41,7 @@ protected function execute(InputInterface $input, OutputInterface $output) {
       $this->scheduler->run();
     } else {
       $tasks = $this->scheduler->getTasks();
-      $id = intval($id);
+      $id = (int)$id;
 
       if (array_key_exists($id - 1, $tasks) === false) {
         throw new \Exception("There are no tasks corresponding to this ID");
diff --git a/Event/EventDispatcher.php b/Event/EventDispatcher.php
index 28adc3b..298217f 100644
--- a/Event/EventDispatcher.php
+++ b/Event/EventDispatcher.php
@@ -36,10 +36,10 @@ public function getSubscribers() {
    */
   public function dispatch(string $event, $args = []) {
     foreach($this->subscribers as $subscriber) {
-      $events = $subscriber->getEvents();
+      $events = $subscriber::getEvents();
       $keys = array_keys($events);
 
-      if (in_array($event, $keys)) {
+      if (in_array($event, $keys, true)) {
         call_user_func_array([$subscriber, $events[$event]], $args);
       }
     }
diff --git a/Task/Schedule.php b/Task/Schedule.php
index 9659eac..148fc4d 100644
--- a/Task/Schedule.php
+++ b/Task/Schedule.php
@@ -27,38 +27,77 @@ class Schedule {
    * Schedule constructor.
    * @param string $expr the default cron
    */
-  public function __construct($expr = "* * * * *")
+  public function __construct(string $expr = "* * * * *")
   {
     $this->cron = new CronExpression($expr, new FieldFactory());
   }
 
+  /**
+   * Sets the cron to work at these months
+   * @param string|int $months
+   * @return $this
+   */
+  public function months($months): self
+  {
+    $this->cron->setPart(CronExpression::MONTH, $months);
+    return $this;
+  }
+
+  /**
+   * Sets the cron to work at these days of the week
+   * ATTENTION: resets daysOfMonth
+   * @param string|int $days
+   * @return $this
+   */
+  public function daysOfWeek($days): self
+  {
+    $this->cron->setPart(CronExpression::DAY, '*');
+    $this->cron->setPart(CronExpression::WEEKDAY, $days);
+    return $this;
+  }
+
+  /**
+   * Sets the cron to work at these days of the month
+   * ATTENTION: resets daysOfWeek
+   * @param string|int $days
+   * @return $this
+   */
+  public function daysOfMonth($days): self
+  {
+    $this->cron->setPart(CronExpression::DAY, $days);
+    $this->cron->setPart(CronExpression::WEEKDAY, '*');
+    return $this;
+  }
+
   /**
    * Sets the cron to work every day
    * @return $this
    */
-  public function daily()
+  public function daily(): self
   {
     $this->cron->setPart(CronExpression::DAY, "*");
     return $this;
   }
 
   /**
-   * Set the cron to work at this hour
-   * @param int $hour
+   * Set the cron to work at these hours
+   * @param string|int $hours
    * @return $this
    */
-  public function hours(int $hour) {
-    $this->cron->setPart(CronExpression::HOUR, (string)$hour);
+  public function hours($hours): self
+  {
+    $this->cron->setPart(CronExpression::HOUR, (string)$hours);
     return $this;
   }
 
   /**
-   * Set the cron to work at this minutes
-   * @param int $minutes
+   * Set the cron to work at these minutes
+   * @param string|int $minutes
    * @return $this
    */
-  public function minutes(int $minutes) {
-    $this->cron->setPart(CronExpression::MINUTE, (string) $minutes);
+  public function minutes($minutes): self
+  {
+    $this->cron->setPart(CronExpression::MINUTE, (string)$minutes);
     return $this;
   }
 
@@ -67,7 +106,8 @@ public function minutes(int $minutes) {
    * @param int $minutes
    * @return $this
    */
-  public function everyMinutes(int $minutes = 1) {
+  public function everyMinutes(int $minutes = 1): self
+  {
     return $this->everyX($minutes, CronExpression::MINUTE);
   }
 
@@ -76,7 +116,8 @@ public function everyMinutes(int $minutes = 1) {
    * @param int $hours
    * @return $this
    */
-  public function everyHours(int $hours = 1) {
+  public function everyHours(int $hours = 1): self
+  {
     return $this->everyX($hours, CronExpression::HOUR);
   }
 
@@ -88,7 +129,8 @@ public function everyHours(int $hours = 1) {
    * @param int $part
    * @return $this
    */
-  public function everyX(int $time = 1, int $part = CronExpression::MINUTE) {
+  public function everyX(int $time = 1, int $part = CronExpression::MINUTE): self
+  {
     if ($time === 0 || $time === 1) {
       $expr = "*";
     } else {
@@ -102,14 +144,16 @@ public function everyX(int $time = 1, int $part = CronExpression::MINUTE) {
   /**
    * @return CronExpression
    */
-  public function getCron() {
+  public function getCron(): CronExpression
+  {
     return $this->cron;
   }
 
   /**
    * @return string
    */
-  public function getExpression() {
+  public function getExpression(): string
+  {
     return $this->cron->getExpression();
   }
 
@@ -119,7 +163,8 @@ public function getExpression() {
      * @param string $value
      * @return $this
      */
-  public function setExpression(string $value) {
+  public function setExpression(string $value): self
+  {
     $this->cron->setExpression($value);
     return $this;
   }
@@ -129,10 +174,10 @@ public function setExpression(string $value) {
      * @param string $value
      * @return $this
      */
-  public function setPart(int $position, string $value)
+  public function setPart(int $position, string $value): self
   {
-      $this->cron->setPart($position, $value);
-      return $this;
+    $this->cron->setPart($position, $value);
+    return $this;
   }
 
   /**
@@ -140,7 +185,8 @@ public function setPart(int $position, string $value)
    * @param DateTimeInterface|string $currentTime
    * @return bool
    */
-  public function isDue($currentTime = 'now') {
+  public function isDue($currentTime = 'now'): bool
+  {
     return $this->cron->isDue($currentTime);
   }
 }
diff --git a/Tests/Task/ScheduleTest.php b/Tests/Task/ScheduleTest.php
index 7713611..7749763 100644
--- a/Tests/Task/ScheduleTest.php
+++ b/Tests/Task/ScheduleTest.php
@@ -73,6 +73,37 @@ public function testDaily() {
       "1 2 * 4 5"
     );
   }
+
+  public function testMonths() {
+    $schedule = new Schedule("1 2 3 4 5");
+    $schedule->months('7-9');
+
+    $this->assertEquals(
+      $schedule->getExpression(),
+      "1 2 3 7-9 5"
+    );
+  }
+
+  public function testDaysOfWeek() {
+    $schedule = new Schedule("1 2 3 4 5");
+    $schedule->daysOfWeek('mon');
+
+    $this->assertEquals(
+      $schedule->getExpression(),
+      "1 2 * 4 mon"
+    );
+  }
+
+  public function testDaysOfMonth() {
+    $schedule = new Schedule("1 2 3 4 5");
+    $schedule->daysOfMonth('7,8,9');
+
+    $this->assertEquals(
+      $schedule->getExpression(),
+      "1 2 7,8,9 4 *"
+    );
+  }
+
   public function testSetExpression() {
     $schedule = new Schedule("* * * * *");
     $schedule->setExpression("0 * * * *");
@@ -82,52 +113,52 @@ public function testSetExpression() {
       "0 * * * *"
     );
   }
-    public function testSetExpressionAllowedValues()
-    {
-        $schedule = new Schedule("* * 2,7,12 * *");
-        $schedule->setExpression("0 8-12 2,7,12 oct sat,sun");
-
-        $this->assertEquals(
-            "0 8-12 2,7,12 oct sat,sun",
-            $schedule->getExpression()
-
-        );
-    }
-
-    public function testSetPartExpression()
-    {
-        $schedule = new Schedule();
-        $schedule->setPart(CronExpression::MINUTE, '0');
-        $schedule->setPart(CronExpression::HOUR, '8-12');
-        $schedule->setPart(CronExpression::DAY, '2,7,12');
-        $schedule->setPart(CronExpression::MONTH, 'oct');
-        $schedule->setPart(CronExpression::WEEKDAY, 'sat,sun');
-
-        $this->assertEquals(
-            "0 8-12 2,7,12 oct sat,sun",
-            $schedule->getExpression()
-        );
-    }
-
-    public function testInvalidExpressionFullMonth()
-    {
-        $this->expectException(InvalidArgumentException::class);
-        $schedule = new Schedule();
-        $schedule->setPart(CronExpression::MONTH, 'october');
-    }
-
-    public function testInvalidExpressionUnknownValue()
-    {
-        $this->expectException(InvalidArgumentException::class);
-        $schedule = new Schedule();
-        $schedule->setPart(CronExpression::MONTH, 'movember');
-    }
-
-    public function testInvalidExpressionNegative()
-    {
-        $this->expectException(InvalidArgumentException::class);
-        $schedule = new Schedule();
-        $schedule->setPart(CronExpression::MINUTE, '-5');
-    }
 
+  public function testSetExpressionAllowedValues()
+  {
+    $schedule = new Schedule("* * 2,7,12 * *");
+    $schedule->setExpression("0 8-12 2,7,12 oct sat,sun");
+
+    $this->assertEquals(
+      "0 8-12 2,7,12 oct sat,sun",
+      $schedule->getExpression()
+
+    );
+  }
+
+  public function testSetPartExpression()
+  {
+    $schedule = new Schedule();
+    $schedule->setPart(CronExpression::MINUTE, '0');
+    $schedule->setPart(CronExpression::HOUR, '8-12');
+    $schedule->setPart(CronExpression::DAY, '2,7,12');
+    $schedule->setPart(CronExpression::MONTH, 'oct');
+    $schedule->setPart(CronExpression::WEEKDAY, 'sat,sun');
+
+    $this->assertEquals(
+      "0 8-12 2,7,12 oct sat,sun",
+      $schedule->getExpression()
+    );
+  }
+
+  public function testInvalidExpressionFullMonth()
+  {
+    $this->expectException(InvalidArgumentException::class);
+    $schedule = new Schedule();
+    $schedule->setPart(CronExpression::MONTH, 'october');
+  }
+
+  public function testInvalidExpressionUnknownValue()
+  {
+    $this->expectException(InvalidArgumentException::class);
+    $schedule = new Schedule();
+    $schedule->setPart(CronExpression::MONTH, 'movember');
+  }
+
+  public function testInvalidExpressionNegative()
+  {
+    $this->expectException(InvalidArgumentException::class);
+    $schedule = new Schedule();
+    $schedule->setPart(CronExpression::MINUTE, '-5');
+  }
 }