new dateTime rule added

.phive/phars.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phive xmlns="https://phar.io/phive">
-  <phar name="php-cs-fixer" version="^3.2" installed="3.52.1" location="./tools/php-cs-fixer" copy="false"/>
+  <phar name="php-cs-fixer" version="^3.2" installed="3.66.2" location="./tools/php-cs-fixer" copy="false"/>
   <phar name="phpunit" version="^10.2.6" installed="10.4.2" location="./tools/phpunit" copy="false"/>
 </phive>

src/Rule/DateTime/DateTime.php

@@ -0,0 +1,57 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SimpleAsFuck\Validator\Rule\DateTime;
+
+use SimpleAsFuck\Validator\Factory\Exception;
+use SimpleAsFuck\Validator\Model\RuleChain;
+use SimpleAsFuck\Validator\Model\Validated;
+use SimpleAsFuck\Validator\Model\ValueMust;
+use SimpleAsFuck\Validator\Rule\General\Rule;
+
+/**
+ * @extends Rule<string, non-empty-string>
+ */
+final class DateTime extends Rule
+{
+    private readonly ?\DateTimeZone $timeZone;
+
+    /**
+     * @param RuleChain<covariant string> $ruleChain
+     * @param Validated<covariant mixed> $validated
+     * @param non-empty-string $valueName
+     * @param non-empty-string $format
+     * @param non-empty-string|null $timeZone
+     */
+    public function __construct(
+        ?Exception $exceptionFactory,
+        RuleChain $ruleChain,
+        Validated $validated,
+        string $valueName,
+        private readonly string $format,
+        ?string $timeZone = null,
+    ) {
+        parent::__construct($exceptionFactory, $ruleChain, $validated, $valueName);
+
+        $this->timeZone = $timeZone !== null ? new \DateTimeZone($timeZone) : null;
+    }
+
+    /**
+     * @param string $value
+     * @return non-empty-string
+     */
+    protected function validate($value): string
+    {
+        $dateTime = \DateTime::createFromFormat($this->format, $value, $this->timeZone);
+        if ($dateTime === false) {
+            throw new ValueMust('be date time in format: \''.$this->format.'\' example: \''.(new \DateTimeImmutable('now', $this->timeZone))->format($this->format).'\'');
+        }
+
+        if ($this->timeZone !== null) {
+            $dateTime->setTimezone($this->timeZone);
+        }
+
+        return $dateTime->format($this->format);
+    }
+}

src/Rule/String/StringRule.php

@@ -11,6 +11,7 @@
 use SimpleAsFuck\Validator\Model\RuleChain;
 use SimpleAsFuck\Validator\Model\Validated;
 use SimpleAsFuck\Validator\Model\ValueMust;
+use SimpleAsFuck\Validator\Rule\DateTime\DateTime;
 use SimpleAsFuck\Validator\Rule\DateTime\ParseDateTime;
 use SimpleAsFuck\Validator\Rule\Email\EmailRule;
 use SimpleAsFuck\Validator\Rule\Enum\Enum;
@@ -256,6 +257,23 @@ public function parseDecimal(int $digits, int $decimals): Max
         return $numericRule->maxDigit($digits)->maxDecimal($decimals);
     }
 
+    /**
+     * @param non-empty-string $format
+     * @param non-empty-string|null $timeZone
+     * @return Rule<string, non-empty-string>
+     */
+    public function dateTime(string $format, ?string $timeZone = null): Rule
+    {
+        return new DateTime(
+            $this->exceptionFactory,
+            $this->ruleChain(),
+            $this->validated,
+            $this->valueName.': \''.$this->nullable(true).'\'',
+            $format,
+            $timeZone,
+        );
+    }
+
     /**
      * @template TDateTime of \DateTimeInterface
      * @param non-empty-string $format