diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1a7287c..66091e7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -34,3 +34,7 @@
 3. 新增：天干五合、地支六合、地支六害。
 4. 修复：获取当年第几周报错的问题。
 5. 优化：性能。
+
+## [1.1.2] - 2024-08-19
+1. 优化：十神计算逻辑。
+2. 修复：获取起运时间报错的问题。
diff --git a/src/culture/Element.php b/src/culture/Element.php
index c1e82b6..00b2951 100644
--- a/src/culture/Element.php
+++ b/src/culture/Element.php
@@ -39,7 +39,7 @@ function next(int $n): static
     }
 
     /**
-     * 我生者（生）
+     * 我生者
      *
      * @return Element 五行
      */
@@ -49,7 +49,7 @@ function getReinforce(): static
     }
 
     /**
-     * 我克者（克）
+     * 我克者
      *
      * @return Element 五行
      */
@@ -59,7 +59,7 @@ function getRestrain(): static
     }
 
     /**
-     * 生我者（泄）
+     * 生我者
      *
      * @return Element 五行
      */
@@ -69,7 +69,7 @@ function getReinforced(): static
     }
 
     /**
-     * 克我者（耗）
+     * 克我者
      *
      * @return Element 五行
      */
diff --git a/src/eightchar/provider/impl/China95ChildLimitProvider.php b/src/eightchar/provider/impl/China95ChildLimitProvider.php
index d40b80a..cb146a6 100644
--- a/src/eightchar/provider/impl/China95ChildLimitProvider.php
+++ b/src/eightchar/provider/impl/China95ChildLimitProvider.php
@@ -30,9 +30,10 @@ function getInfo(SolarTime $birthTime, SolarTerm $term): ChildLimitInfo
 
         $d = $birthTime->getDay() + $day;
         $dc = $sm->getDayCount();
-        if ($d > $dc) {
+        while ($d > $dc) {
             $d -= $dc;
             $sm = $sm->next(1);
+            $dc = $sm->getDayCount();
         }
 
         return new ChildLimitInfo($birthTime, SolarTime::fromYmdHms($sm->getYear(), $sm->getMonth(), $d, $birthTime->getHour(), $birthTime->getMinute(), $birthTime->getSecond()), $year, $month, $day, 0, 0);
diff --git a/src/eightchar/provider/impl/DefaultChildLimitProvider.php b/src/eightchar/provider/impl/DefaultChildLimitProvider.php
index f940193..0cb9e49 100644
--- a/src/eightchar/provider/impl/DefaultChildLimitProvider.php
+++ b/src/eightchar/provider/impl/DefaultChildLimitProvider.php
@@ -46,9 +46,10 @@ function getInfo(SolarTime $birthTime, SolarTerm $term): ChildLimitInfo
         $sm = SolarMonth::fromYm($birthTime->getYear() + $year, $birthTime->getMonth())->next($month);
 
         $dc = $sm->getDayCount();
-        if ($d > $dc) {
+        while ($d > $dc) {
             $d -= $dc;
             $sm = $sm->next(1);
+            $dc = $sm->getDayCount();
         }
 
         return new ChildLimitInfo($birthTime, SolarTime::fromYmdHms($sm->getYear(), $sm->getMonth(), $d, $h, $mi, $birthTime->getSecond()), $year, $month, $day, $hour, $minute);
diff --git a/src/sixtycycle/HeavenStem.php b/src/sixtycycle/HeavenStem.php
index 77afa42..fdb2fa0 100644
--- a/src/sixtycycle/HeavenStem.php
+++ b/src/sixtycycle/HeavenStem.php
@@ -72,20 +72,12 @@ function getYinYang(): YinYang
      */
     function getTenStar(HeavenStem $target): TenStar
     {
-        $hostElement = $this->getElement();
-        $guestElement = $target->getElement();
-        $index = 0;
-        $sameYinYang = $this->getYinYang()->equals($target->getYinYang());
-        if ($hostElement->getReinforce()->equals($guestElement)) {
-            $index = 1;
-        } else if ($hostElement->getRestrain()->equals($guestElement)) {
-            $index = 2;
-        } else if ($guestElement->getRestrain()->equals($hostElement)) {
-            $index = 3;
-        } else if ($guestElement->getReinforce()->equals($hostElement)) {
-            $index = 4;
+        $targetIndex = $target->getIndex();
+        $offset = $targetIndex - $this->index;
+        if ($this->index % 2 != 0 && $targetIndex % 2 == 0) {
+            $offset += 2;
         }
-        return TenStar::fromIndex($index * 2 + ($sameYinYang ? 0 : 1));
+        return TenStar::fromIndex($offset);
     }
 
     /**