diff --git a/php/PublicHolidayCalendar.php b/php/PublicHolidayCalendar.php
index c1adcfb..a69ba44 100644
--- a/php/PublicHolidayCalendar.php
+++ b/php/PublicHolidayCalendar.php
@@ -164,11 +164,10 @@ class PublicHolidayCalendar {
      * @return Event[] The list of events
      */
     private function createVariablePublicHolidays (int $year): array {
-        $paquesDate = static::calculatePaques($year);
         return [
-            static::createEvent('Pâques', 'Lundi de Pâques', true, $paquesDate),
-            static::createEvent('Ascension', 'Jeudi de l\'Ascension', true, $paquesDate->add(new DateInterval('P39D'))),
-            static::createEvent('Pentecôte', 'Lundi de Pentecôte', true, $paquesDate->add(new DateInterval('P50D'))),
+            static::createEvent('Pâques', 'Lundi de Pâques', true, static::calculatePaques($year)),
+            static::createEvent('Ascension', 'Jeudi de l\'Ascension', true, static::calculateAscension($year)),
+            static::createEvent('Pentecôte', 'Pentecôte', true, static::calculatePentecote($year)),
         ];
     }
     /**
@@ -224,7 +223,7 @@ class PublicHolidayCalendar {
      *
      * @param int $year The year
      *
-     * @return DateTimeImmutable The of "Pâques"
+     * @return DateTimeImmutable The date of "Pâques"
      */
     private static function calculatePaques (int $year): DateTimeImmutable {
         //https://fr.wikipedia.org/wiki/Calcul_de_la_date_de_P%C3%A2ques
@@ -244,6 +243,27 @@ class PublicHolidayCalendar {
 
         return static::createDate($year, intdiv($paquesNumber, 31), ($paquesNumber % 31) + 1);
     }
+    /**
+     * Calculate the date of "Ascension"
+     *
+     * @param int $year The year
+     *
+     * @return DateTimeImmutable The date of "Ascension"
+     */
+    private static function calculateAscension (int $year): DateTimeImmutable {
+        return self::calculatePaques($year)->add(new DateInterval('P39D'));
+    }
+    /**
+     * Calculate the date of "Pentecôte"
+     *
+     * @param int $year The year
+     *
+     * @return DateTimeImmutable The date of "Pentecôte"
+     */
+    private static function calculatePentecote (int $year): DateTimeImmutable {
+        return self::calculatePaques($year)->add(new DateInterval('P49D'));
+    }
+
     /**
      * Calculate the mother day
      *
@@ -252,8 +272,6 @@ class PublicHolidayCalendar {
      * @return DateTimeImmutable The date
      */
     private static function calculateMotherDay (int $year): DateTimeImmutable {
-        $paquesDate = static::calculatePaques($year);
-
         $motherDay = static::createDate($year, 5, 31);
         $motherDayOfWeek = (int)$motherDay->format('N');
         if ($motherDayOfWeek < 7) {
@@ -263,7 +281,7 @@ class PublicHolidayCalendar {
             catch (Exception) {
             }
         }
-        if ($motherDay === $paquesDate) {
+        if ($motherDay === static::calculatePentecote($year)) {
             $motherDay = $motherDay->add(new DateInterval('P7D'));
         }