How do I fix All-Day Calendar events from shifting 1 hour during day light savings?

[nocstaff@urbancom.net]

I am custom making a repeating calendar events option, but discovered any repeating meetings or jobs I make that exists after November 1st gets shifted from 12am-12pm to 11am-11pm, making the item appear to last 2 days on the calendar. I tried everything to fix it but I just can't figure it out. How can I adjust this?


Here is the code I made in the new hook I made /var/www/espocrm/data/espocrm/custom/Espo/Custom/Hooks/Common/RecurringBase.php:

<?php
namespace Espo\Custom\Hooks\Common;
use Espo\ORM\Entity;
use Espo\Core\Hook\Hook\AfterSave;
use Espo\ORM\EntityManager;
use Espo\ORM\Repository\Option\SaveOptions;
class RecurringBase implements AfterSave
{
    protected EntityManager $em;
    public function __construct(EntityManager $em)
    {
        $this->em = $em;
    }
    public function afterSave(Entity $entity, SaveOptions $options): void
    {
        if (!$entity->get('repeat') || $options->get('isRecurringChild') === true) {
            return;
        }
        $startDate = new \DateTime($entity->get('dateStart'));
        $endDate   = new \DateTime($entity->get('dateEnd'));
        $until     = $entity->get('repeatUntil') ? new \DateTime($entity->get('repeatUntil')) : null;
        $interval  = (int) $entity->get('repeatInterval') ?: 1;
        $repeat    = $entity->get('repeat');
        $count = 0;
        $max   = 200;
        while (true) {
            $count++;
            $newStart = (clone $startDate);
            $newEnd   = (clone $endDate);
            switch ($repeat) {
                case 'Daily':
                    $newStart->modify("+{$interval} days");
                    $newEnd->modify("+{$interval} days");
                    break;
                case 'Weekly':
                    $newStart->modify("+{$interval} weeks");
                    $newEnd->modify("+{$interval} weeks");
                    break;
                case 'Monthly':
                    $newStart->modify("+{$interval} months");
                    $newEnd->modify("+{$interval} months");
                    break;
                default:
                    return;
            }
            if ($until && $newStart > $until) {
                break;
            }
            $duplicate = $this->em->getEntityFactory()->create($entity->getEntityType());
            foreach ([
                'name','description','status',
                'assignedUserId','teamsIds',
                'parentId','parentType',
                'allDay','reminders'
            ] as $f) {
                if ($entity->has($f)) {
                    $duplicate->set($f, $entity->get($f));
                }
            }
            $duplicate->set('dateStart', $newStart->format('Y-m-d H:i:s'));
            $duplicate->set('dateEnd',   $newEnd->format('Y-m-d H:i:s'));
            $duplicate->set('repeat', null);
            $duplicate->set('repeatInterval', null);
            $duplicate->set('repeatUntil', null);
            $this->em->saveEntity($duplicate, ['isRecurringChild' => true]);
            if ($count >= $max) {
                break;
            }
            $startDate = $newStart;
            $endDate   = $newEnd;
        }
    }
}