diff --git a/app/code/core/Mage/AdminNotification/Model/Feed.php b/app/code/core/Mage/AdminNotification/Model/Feed.php
index c24c2d9ba79..9b19e23fd67 100644
--- a/app/code/core/Mage/AdminNotification/Model/Feed.php
+++ b/app/code/core/Mage/AdminNotification/Model/Feed.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * AdminNotification Feed model
@@ -89,7 +90,11 @@ public function checkUpdate()
      */
     public function getDate($rssDate)
     {
-        return gmdate(Varien_Db_Adapter_Pdo_Mysql::TIMESTAMP_FORMAT, Carbon::parse($rssDate)->getTimestamp());
+        try {
+            return gmdate(Varien_Db_Adapter_Pdo_Mysql::TIMESTAMP_FORMAT, Carbon::parse($rssDate)->getTimestamp());
+        } catch (InvalidFormatException) {
+            return gmdate(Varien_Db_Adapter_Pdo_Mysql::TIMESTAMP_FORMAT);
+        }
     }
 
     /**
diff --git a/app/code/core/Mage/Api/Model/Session.php b/app/code/core/Mage/Api/Model/Session.php
index 154cbde90dd..e6ebe1c69ad 100644
--- a/app/code/core/Mage/Api/Model/Session.php
+++ b/app/code/core/Mage/Api/Model/Session.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * Webservice api session
@@ -219,8 +220,12 @@ public function isSessionExpired($user)
             return true;
         }
 
-        $timeout = Carbon::parse(Varien_Date::now())->getTimestamp() - Carbon::parse($user->getLogdate())->getTimestamp();
-        return $timeout > Mage::getStoreConfig('api/config/session_timeout');
+        try {
+            $timeout = Carbon::parse(Varien_Date::now())->getTimestamp() - Carbon::parse($user->getLogdate())->getTimestamp();
+            return $timeout > Mage::getStoreConfig('api/config/session_timeout');
+        } catch (InvalidFormatException) {
+            return true;
+        }
     }
 
     /**
diff --git a/app/code/core/Mage/CatalogRule/Model/Resource/Rule.php b/app/code/core/Mage/CatalogRule/Model/Resource/Rule.php
index c46943dbdc8..1f6e2a9f96b 100644
--- a/app/code/core/Mage/CatalogRule/Model/Resource/Rule.php
+++ b/app/code/core/Mage/CatalogRule/Model/Resource/Rule.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * Catalog rules resource model
@@ -180,8 +181,14 @@ public function insertRuleData(Mage_CatalogRule_Model_Rule $rule, array $website
 
         $customerGroupIds = $rule->getCustomerGroupIds();
 
-        $fromTime = (int) Mage::getModel('core/date')->gmtTimestamp(Carbon::parse((string) $rule->getFromDate())->getTimestamp());
-        $toTime = (int) Mage::getModel('core/date')->gmtTimestamp(Carbon::parse((string) $rule->getToDate())->getTimestamp());
+        try {
+            $fromTime = (int) Mage::getModel('core/date')->gmtTimestamp(Carbon::parse((string) $rule->getFromDate())->getTimestamp());
+            $toTime = (int) Mage::getModel('core/date')->gmtTimestamp(Carbon::parse((string) $rule->getToDate())->getTimestamp());
+        } catch (InvalidFormatException) {
+            // Invalid date format, skip rule
+            return;
+        }
+
         $toTime = $toTime ? ($toTime + self::SECONDS_IN_DAY - 1) : 0;
 
         $timestamp = Carbon::now()->getTimestamp();
@@ -693,7 +700,11 @@ public function getRulesFromProduct($date, $websiteId, $customerGroupId, $produc
     {
         $adapter = $this->_getReadAdapter();
         if (is_string($date)) {
-            $date = Carbon::parse($date)->getTimestamp();
+            try {
+                $date = Carbon::parse($date)->getTimestamp();
+            } catch (InvalidFormatException) {
+                return [];
+            }
         }
 
         $select = $adapter->select()
diff --git a/app/code/core/Mage/CatalogRule/Model/Rule/Condition/Product.php b/app/code/core/Mage/CatalogRule/Model/Rule/Condition/Product.php
index 0c721cddf19..6dea3af108f 100644
--- a/app/code/core/Mage/CatalogRule/Model/Rule/Condition/Product.php
+++ b/app/code/core/Mage/CatalogRule/Model/Rule/Condition/Product.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * Catalog Rule Product Condition data model
@@ -102,7 +103,11 @@ protected function _prepareDatetimeValue($value, $object)
                 return null;
             }
 
-            $value = Carbon::parse($value)->getTimestamp();
+            try {
+                $value = Carbon::parse($value)->getTimestamp();
+            } catch (InvalidFormatException) {
+                return null;
+            }
         }
 
         return $value;
diff --git a/app/code/core/Mage/Core/Block/Html/Date.php b/app/code/core/Mage/Core/Block/Html/Date.php
index ac824159511..89ccdb904e0 100644
--- a/app/code/core/Mage/Core/Block/Html/Date.php
+++ b/app/code/core/Mage/Core/Block/Html/Date.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * HTML select element block
@@ -79,7 +80,11 @@ protected function _toHtml()
     public function getEscapedValue($index = null)
     {
         if ($this->getFormat() && $this->getValue()) {
-            return Carbon::parse($this->getValue())->format($this->getFormat());
+            try {
+                return Carbon::parse($this->getValue())->format($this->getFormat());
+            } catch (InvalidFormatException) {
+                return htmlspecialchars($this->getValue());
+            }
         }
 
         return htmlspecialchars($this->getValue());
diff --git a/app/code/core/Mage/Core/Model/Date.php b/app/code/core/Mage/Core/Model/Date.php
index 3e4c088818e..3f3f83b4ecc 100644
--- a/app/code/core/Mage/Core/Model/Date.php
+++ b/app/code/core/Mage/Core/Model/Date.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * Date conversion model
@@ -122,7 +123,11 @@ public function gmtTimestamp($input = null)
         } elseif (is_numeric($input)) {
             $result = $input;
         } else {
-            $result = Carbon::parse($input)->getTimestamp();
+            try {
+                $result = Carbon::parse($input)->getTimestamp();
+            } catch (InvalidFormatException) {
+                return false;
+            }
         }
 
         if ($result === false) {
@@ -142,7 +147,7 @@ public function gmtTimestamp($input = null)
      * Input date must be in GMT timezone
      *
      * @param  int|string $input date in GMT timezone
-     * @return int
+     * @return false|int
      */
     public function timestamp($input = null)
     {
@@ -151,7 +156,11 @@ public function timestamp($input = null)
         } elseif (is_numeric($input)) {
             $result = $input;
         } else {
-            $result = Carbon::parse($input)->getTimestamp();
+            try {
+                $result = Carbon::parse($input)->getTimestamp();
+            } catch (InvalidFormatException) {
+                return false;
+            }
         }
 
         $date      = Mage::app()->getLocale()->date($result);
diff --git a/app/code/core/Mage/Core/Model/Locale.php b/app/code/core/Mage/Core/Model/Locale.php
index 719df232aa7..49e7b6197b2 100644
--- a/app/code/core/Mage/Core/Model/Locale.php
+++ b/app/code/core/Mage/Core/Model/Locale.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * Locale model
@@ -632,7 +633,11 @@ public function storeTimeStamp($store = null)
         @date_default_timezone_set($timezone);
         $date = date(Varien_Date::DATETIME_PHP_FORMAT);
         @date_default_timezone_set($currentTimezone);
-        return Carbon::parse($date)->getTimestamp();
+        try {
+            return Carbon::parse($date)->getTimestamp();
+        } catch (InvalidFormatException) {
+            return Carbon::now()->getTimestamp();
+        }
     }
 
     /**
@@ -886,8 +891,18 @@ public function isStoreDateInInterval($store, $dateFrom = null, $dateTo = null)
         }
 
         $storeTimeStamp = $this->storeTimeStamp($store);
-        $fromTimeStamp  = Carbon::parse((string) $dateFrom)->getTimestamp();
-        $toTimeStamp    = Carbon::parse((string) $dateTo)->getTimestamp();
+        
+        // Initialize variables to avoid undefined variable issues
+        $fromTimeStamp = 0;
+        $toTimeStamp = 0;
+        
+        try {
+            $fromTimeStamp  = Carbon::parse((string) $dateFrom)->getTimestamp();
+            $toTimeStamp    = Carbon::parse((string) $dateTo)->getTimestamp();
+        } catch (InvalidFormatException) {
+            return false;
+        }
+
         if ($dateTo) {
             // fix date YYYY-MM-DD 00:00:00 to YYYY-MM-DD 23:59:59
             $toTimeStamp += 86400;
diff --git a/app/code/core/Mage/Cron/Model/Observer.php b/app/code/core/Mage/Cron/Model/Observer.php
index 1875b1a2966..d246a1943f1 100644
--- a/app/code/core/Mage/Cron/Model/Observer.php
+++ b/app/code/core/Mage/Cron/Model/Observer.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * Crontab observer
@@ -243,9 +244,23 @@ public function cleanup()
 
         $now = Carbon::now()->getTimestamp();
         foreach ($history->getIterator() as $record) {
-            if (empty($record->getExecutedAt())
-                || (Carbon::parse($record->getExecutedAt())->getTimestamp() < $now - $historyLifetimes[$record->getStatus()])
-            ) {
+            $executedAt = $record->getExecutedAt();
+            
+            // Skip parsing if the date is empty
+            if (empty($executedAt)) {
+                $record->delete();
+                continue;
+            }
+            
+            try {
+                $executedTimestamp = Carbon::parse($executedAt)->getTimestamp();
+            } catch (InvalidFormatException) {
+                // If date is malformed, delete the record
+                $record->delete();
+                continue;
+            }
+
+            if ($executedTimestamp < $now - $historyLifetimes[$record->getStatus()]) {
                 $record->delete();
             }
         }
diff --git a/app/code/core/Mage/Cron/Model/Schedule.php b/app/code/core/Mage/Cron/Model/Schedule.php
index 254f1075436..3a0d9c15935 100644
--- a/app/code/core/Mage/Cron/Model/Schedule.php
+++ b/app/code/core/Mage/Cron/Model/Schedule.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * Crontab schedule model
@@ -92,7 +93,11 @@ public function trySchedule($time)
         }
 
         if (!is_numeric($time)) {
-            $time = Carbon::parse($time)->getTimestamp();
+            try {
+                $time = Carbon::parse($time)->getTimestamp();
+            } catch (InvalidFormatException) {
+                $time = false;
+            }
         }
 
         if ($time === false) {
diff --git a/app/code/core/Mage/Eav/Model/Attribute/Data/Date.php b/app/code/core/Mage/Eav/Model/Attribute/Data/Date.php
index e5be6605b3e..cb3d57dd759 100644
--- a/app/code/core/Mage/Eav/Model/Attribute/Data/Date.php
+++ b/app/code/core/Mage/Eav/Model/Attribute/Data/Date.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * EAV Entity Attribute Date Data Model
@@ -63,30 +64,37 @@ public function validateValue($value)
 
         //range validation
         $validateRules = $attribute->getValidateRules();
-        if ((!empty($validateRules['date_range_min']) && (Carbon::parse($value)->getTimestamp() < $validateRules['date_range_min']))
-            || (!empty($validateRules['date_range_max']) && (Carbon::parse($value)->getTimestamp() > $validateRules['date_range_max']))
-        ) {
-            $format = 'd/m/Y';
-            if (!empty($validateRules['date_range_min']) && !empty($validateRules['date_range_max'])) {
-                $errors[] = Mage::helper('customer')->__(
-                    'Please enter a valid date between %s and %s at %s.',
-                    Carbon::createFromTimestamp($validateRules['date_range_min'])->format($format),
-                    Carbon::createFromTimestamp($validateRules['date_range_max'])->format($format),
-                    $label,
-                );
-            } elseif (!empty($validateRules['date_range_min'])) {
-                $errors[] = Mage::helper('customer')->__(
-                    'Please enter a valid date equal to or greater than %s at %s.',
-                    Carbon::createFromTimestamp($validateRules['date_range_min'])->format($format),
-                    $label,
-                );
-            } elseif (!empty($validateRules['date_range_max'])) {
-                $errors[] = Mage::helper('customer')->__(
-                    'Please enter a valid date less than or equal to %s at %s.',
-                    Carbon::createFromTimestamp($validateRules['date_range_max'])->format($format),
-                    $label,
-                );
+        try {
+            if ((!empty($validateRules['date_range_min']) && (Carbon::parse($value)->getTimestamp() < $validateRules['date_range_min']))
+                || (!empty($validateRules['date_range_max']) && (Carbon::parse($value)->getTimestamp() > $validateRules['date_range_max']))
+            ) {
+                $format = 'd/m/Y';
+                if (!empty($validateRules['date_range_min']) && !empty($validateRules['date_range_max'])) {
+                    $errors[] = Mage::helper('customer')->__(
+                        'Please enter a valid date between %s and %s at %s.',
+                        Carbon::createFromTimestamp($validateRules['date_range_min'])->format($format),
+                        Carbon::createFromTimestamp($validateRules['date_range_max'])->format($format),
+                        $label,
+                    );
+                } elseif (!empty($validateRules['date_range_min'])) {
+                    $errors[] = Mage::helper('customer')->__(
+                        'Please enter a valid date equal to or greater than %s at %s.',
+                        Carbon::createFromTimestamp($validateRules['date_range_min'])->format($format),
+                        $label,
+                    );
+                } elseif (!empty($validateRules['date_range_max'])) {
+                    $errors[] = Mage::helper('customer')->__(
+                        'Please enter a valid date less than or equal to %s at %s.',
+                        Carbon::createFromTimestamp($validateRules['date_range_max'])->format($format),
+                        $label,
+                    );
+                }
             }
+        } catch (InvalidFormatException) {
+            $errors[] = Mage::helper('customer')->__(
+                'Please enter a valid date at %s.',
+                $label,
+            );
         }
 
         if (count($errors) == 0) {
diff --git a/app/code/core/Mage/Install/Model/Installer/Config.php b/app/code/core/Mage/Install/Model/Installer/Config.php
index 5ce9d7ba415..985c504f31d 100644
--- a/app/code/core/Mage/Install/Model/Installer/Config.php
+++ b/app/code/core/Mage/Install/Model/Installer/Config.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * Config installer
@@ -169,7 +170,12 @@ protected function _checkUrl($url, $secure = false)
 
     public function replaceTmpInstallDate($date = null)
     {
-        $stamp    = Carbon::parse((string) $date)->getTimestamp();
+        try {
+            $stamp = Carbon::parse((string) $date)->getTimestamp();
+        } catch (InvalidFormatException) {
+            $stamp = null;
+        }
+
         $localXml = file_get_contents($this->_localConfigFile);
         $localXml = str_replace(self::TMP_INSTALL_DATE_VALUE, Carbon::createFromTimestamp($stamp ? $stamp : Carbon::now()->getTimestamp())->format('r'), $localXml);
         file_put_contents($this->_localConfigFile, $localXml);
diff --git a/app/code/core/Mage/Paypal/Model/Cert.php b/app/code/core/Mage/Paypal/Model/Cert.php
index 6d366a14f2d..e8712edb28a 100644
--- a/app/code/core/Mage/Paypal/Model/Cert.php
+++ b/app/code/core/Mage/Paypal/Model/Cert.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * PayPal specific model for certificate based authentication
@@ -54,7 +55,13 @@ public function getCertPath()
             Mage::throwException(Mage::helper('paypal')->__('PayPal certificate does not exist.'));
         }
 
-        $certFileName = sprintf('cert_%s_%s.pem', $this->getWebsiteId(), Carbon::parse($this->getUpdatedAt())->getTimestamp());
+        try {
+            $timestamp = Carbon::parse($this->getUpdatedAt())->getTimestamp();
+        } catch (InvalidFormatException) {
+            $timestamp = Carbon::now()->getTimestamp();
+        }
+
+        $certFileName = sprintf('cert_%s_%s.pem', $this->getWebsiteId(), $timestamp);
         $certFile = $this->_getBaseDir() . DS . $certFileName;
 
         if (!file_exists($certFile)) {
diff --git a/app/code/core/Mage/Paypal/Model/Express.php b/app/code/core/Mage/Paypal/Model/Express.php
index 5205b2cab44..3f73c5291f1 100644
--- a/app/code/core/Mage/Paypal/Model/Express.php
+++ b/app/code/core/Mage/Paypal/Model/Express.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * @package    Mage_Paypal
@@ -662,9 +663,13 @@ public function canCapture()
                 return false;
             }
 
-            $dateCompass = Carbon::parse($orderTransaction->getCreatedAt())->addDays($orderValidPeriod);
-            $currentDate = Carbon::now();
-            if ($currentDate > $dateCompass) {
+            try {
+                $dateCompass = Carbon::parse($orderTransaction->getCreatedAt())->addDays($orderValidPeriod);
+                $currentDate = Carbon::now();
+                if ($currentDate > $dateCompass) {
+                    return false;
+                }
+            } catch (InvalidFormatException) {
                 return false;
             }
         }
diff --git a/app/code/core/Mage/Rule/Model/Condition/Product/Abstract.php b/app/code/core/Mage/Rule/Model/Condition/Product/Abstract.php
index 18b1a439fef..3f300570bac 100644
--- a/app/code/core/Mage/Rule/Model/Condition/Product/Abstract.php
+++ b/app/code/core/Mage/Rule/Model/Condition/Product/Abstract.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * Abstract Rule product condition data model
@@ -506,9 +507,13 @@ public function validate(Varien_Object $object)
             $attr = $object->getResource()->getAttribute($attrCode);
 
             if ($attr && $attr->getBackendType() == 'datetime' && !is_int($this->getValue())) {
-                $this->setValue(Carbon::parse($this->getValue())->getTimestamp());
-                $value = Carbon::parse($object->getData($attrCode))->getTimestamp();
-                return $this->validateAttribute($value);
+                try {
+                    $this->setValue(Carbon::parse($this->getValue())->getTimestamp());
+                    $value = Carbon::parse($object->getData($attrCode))->getTimestamp();
+                    return $this->validateAttribute($value);
+                } catch (InvalidFormatException) {
+                    return false;
+                }
             }
 
             if ($attr && $attr->getFrontendInput() == 'multiselect') {
@@ -526,7 +531,11 @@ public function validate(Varien_Object $object)
             foreach ($this->_entityAttributeValues[$object->getId()] as $value) {
                 $attr = $object->getResource()->getAttribute($attrCode);
                 if ($attr && $attr->getBackendType() == 'datetime') {
-                    $value = Carbon::parse($value)->getTimestamp();
+                    try {
+                        $value = Carbon::parse($value)->getTimestamp();
+                    } catch (InvalidFormatException) {
+                        continue;
+                    }
                 } elseif ($attr && $attr->getFrontendInput() == 'multiselect') {
                     $value = strlen($value) ? explode(',', $value) : [];
                 }
diff --git a/app/code/core/Mage/Shipping/Block/Tracking/Popup.php b/app/code/core/Mage/Shipping/Block/Tracking/Popup.php
index 779e4b36a1f..42f639ad360 100644
--- a/app/code/core/Mage/Shipping/Block/Tracking/Popup.php
+++ b/app/code/core/Mage/Shipping/Block/Tracking/Popup.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * Class Mage_Shipping_Block_Tracking_Popup
@@ -221,8 +222,12 @@ public function formatDeliveryDate($date)
     {
         $locale = Mage::app()->getLocale();
         $format = $locale->getDateFormat(Mage_Core_Model_Locale::FORMAT_TYPE_MEDIUM);
-        return $locale->date(Carbon::parse($date)->getTimestamp(), Zend_Date::TIMESTAMP, null, false)
-            ->toString($format);
+        try {
+            return $locale->date(Carbon::parse($date)->getTimestamp(), Zend_Date::TIMESTAMP, null, false)
+                ->toString($format);
+        } catch (InvalidFormatException) {
+            return $date;
+        }
     }
 
     /**
@@ -241,8 +246,12 @@ public function formatDeliveryTime($time, $date = null)
         $locale = Mage::app()->getLocale();
 
         $format = $locale->getTimeFormat(Mage_Core_Model_Locale::FORMAT_TYPE_SHORT);
-        return $locale->date(Carbon::parse($time)->getTimestamp(), Zend_Date::TIMESTAMP, null, false)
-            ->toString($format);
+        try {
+            return $locale->date(Carbon::parse($time)->getTimestamp(), Zend_Date::TIMESTAMP, null, false)
+                ->toString($format);
+        } catch (InvalidFormatException) {
+            return $time;
+        }
     }
 
     /**
diff --git a/app/code/core/Mage/Usa/Model/Shipping/Carrier/Dhl/Abstract.php b/app/code/core/Mage/Usa/Model/Shipping/Carrier/Dhl/Abstract.php
index fc0d6570ff4..5640ec49010 100644
--- a/app/code/core/Mage/Usa/Model/Shipping/Carrier/Dhl/Abstract.php
+++ b/app/code/core/Mage/Usa/Model/Shipping/Carrier/Dhl/Abstract.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * DHL Abstract class
@@ -61,12 +62,16 @@ protected function _determineShippingDay($shippingDays, $date)
         $shippingDays = explode(',', $shippingDays);
 
         $index = 0;
-        $weekday = Carbon::parse($date)->format('D');
-        while (!in_array($weekday, $shippingDays) && $index < 10) {
-            $index++;
-            $weekday = Carbon::parse("$date +$index day")->format('D');
-        }
+        try {
+            $weekday = Carbon::parse($date)->format('D');
+            while (!in_array($weekday, $shippingDays) && $index < 10) {
+                $index++;
+                $weekday = Carbon::parse("$date +$index day")->format('D');
+            }
 
-        return Carbon::parse("$date +$index day")->format(self::REQUEST_DATE_FORMAT);
+            return Carbon::parse("$date +$index day")->format(self::REQUEST_DATE_FORMAT);
+        } catch (InvalidFormatException) {
+            return $date;
+        }
     }
 }
diff --git a/app/code/core/Mage/Usa/Model/Shipping/Carrier/Dhl/International.php b/app/code/core/Mage/Usa/Model/Shipping/Carrier/Dhl/International.php
index fae0041f796..36591ed0e24 100644
--- a/app/code/core/Mage/Usa/Model/Shipping/Carrier/Dhl/International.php
+++ b/app/code/core/Mage/Usa/Model/Shipping/Carrier/Dhl/International.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * DHL International (API v1.4)
@@ -787,7 +788,12 @@ protected function _getQuotes()
                 $debugPoint = &$debugData['try-' . $offset];
 
                 $requestXml = $this->_buildQuotesRequestXml();
-                $date = Carbon::parse($this->_getShipDate() . " +$offset days")->format(self::REQUEST_DATE_FORMAT);
+                try {
+                    $date = Carbon::parse($this->_getShipDate() . " +$offset days")->format(self::REQUEST_DATE_FORMAT);
+                } catch (InvalidFormatException) {
+                    break;
+                }
+
                 $this->_setQuotesRequestXmlDate($requestXml, $date);
 
                 $request = $requestXml->asXML();
diff --git a/app/code/core/Mage/Usa/Model/Shipping/Carrier/Fedex.php b/app/code/core/Mage/Usa/Model/Shipping/Carrier/Fedex.php
index 97f34c7efa1..655c28805a1 100644
--- a/app/code/core/Mage/Usa/Model/Shipping/Carrier/Fedex.php
+++ b/app/code/core/Mage/Usa/Model/Shipping/Carrier/Fedex.php
@@ -8,6 +8,7 @@
  */
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * Fedex shipping implementation
@@ -1064,7 +1065,12 @@ protected function _parseTrackingResponse($trackingValue, $response)
                 $resultArray['status'] = (string) $trackInfo->StatusDescription;
                 $resultArray['service'] = (string) $trackInfo->ServiceInfo;
                 $timestamp = $trackInfo->EstimatedDeliveryTimestamp ?? $trackInfo->ActualDeliveryTimestamp;
-                $timestamp = Carbon::parse((string) $timestamp)->getTimestamp();
+                try {
+                    $timestamp = Carbon::parse((string) $timestamp)->getTimestamp();
+                } catch (InvalidFormatException) {
+                    $timestamp = null;
+                }
+
                 if ($timestamp) {
                     $resultArray['deliverydate'] = Carbon::createFromTimestamp($timestamp)->format('Y-m-d');
                     $resultArray['deliverytime'] = Carbon::createFromTimestamp($timestamp)->format('H:i:s');
@@ -1106,7 +1112,12 @@ protected function _parseTrackingResponse($trackingValue, $response)
                     foreach ($events as $event) {
                         $tempArray = [];
                         $tempArray['activity'] = (string) $event->EventDescription;
-                        $timestamp = Carbon::parse((string) $event->Timestamp)->getTimestamp();
+                        try {
+                            $timestamp = Carbon::parse((string) $event->Timestamp)->getTimestamp();
+                        } catch (InvalidFormatException) {
+                            $timestamp = null;
+                        }
+
                         if ($timestamp) {
                             $tempArray['deliverydate'] = Carbon::createFromTimestamp($timestamp)->format('Y-m-d');
                             $tempArray['deliverytime'] = Carbon::createFromTimestamp($timestamp)->format('H:i:s');
diff --git a/lib/Varien/Db/Adapter/Mysqli.php b/lib/Varien/Db/Adapter/Mysqli.php
index dbe83e0be38..2ba942d2c46 100644
--- a/lib/Varien/Db/Adapter/Mysqli.php
+++ b/lib/Varien/Db/Adapter/Mysqli.php
@@ -1,6 +1,7 @@
 <?php
 
 use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
 
 /**
  * @copyright  For copyright and license information, read the COPYING.txt file.
@@ -112,7 +113,11 @@ public function convertDate($date)
             return $date->toString(self::ISO_DATE_FORMAT);
         }
 
-        return Carbon::parse($date)->format(Varien_Db_Adapter_Pdo_Mysql::DATE_FORMAT);
+        try {
+            return Carbon::parse($date)->format(Varien_Db_Adapter_Pdo_Mysql::DATE_FORMAT);
+        } catch (InvalidFormatException) {
+            return null;
+        }
     }
 
     public function convertDateTime($datetime)
@@ -121,7 +126,11 @@ public function convertDateTime($datetime)
             return $datetime->toString(self::ISO_DATETIME_FORMAT);
         }
 
-        return Carbon::parse($datetime)->format(Varien_Db_Adapter_Pdo_Mysql::TIMESTAMP_FORMAT);
+        try {
+            return Carbon::parse($datetime)->format(Varien_Db_Adapter_Pdo_Mysql::TIMESTAMP_FORMAT);
+        } catch (InvalidFormatException) {
+            return null;
+        }
     }
 
     // phpcs:ignore PSR1.Methods.CamelCapsMethodName.NotCamelCaps