Datetime parameter in PHP SOAP call using the SoapClient class - php

Question

I've developed a PHP SOAP call with code bellow with datetime parameter.
Problem is that it displays "No Items found" if there is only one item, after the given time.
When i make the call for longer period, it shows all items accordinly.
Blockquote
Current DateTime is : 02-18-2020 13:46:20
Display products after DateTime : 02-18-2020 13:40:00
No Items found
No Items found
No Items found
...........
Thanks in advance for the help.
<?php
echo "Current DateTime is : " . date("m-d-Y H:i:s") . "<br/><br/>";
// $dateTime = date('m-d-Y H:i:s',strtotime('-40 minutes'));
$dateTimeCall = '02-18-2020 13:40:00' ;
echo "Display products after DateTime : " . "<b>" . $dateTime . "</b>" . "<br/><br/>";
$soap_client = new SoapClient('http://....... /eCommerceWebService.asmx?WSDL') ;
$params = array('SiteKey' => 'qwerty',
'Date' => $dateTimeCall,
'StorageCode' => '11111' ) ;
// GetProducts
$response = $soap_client->GetProducts($params) ;
$all_products = $response->GetProductsResult->StoreDetails ;
foreach( $all_products as $product ) {
$ItemId = $product->ItemId;
$model = $product->ItemCode;
$ItemDateModified = $product->ItemDateModified;
// echo $ItemId . " - " . $model . " - " . $ItemDateModified . "<br/>";
$date = date_create($ItemDateModified);
$dateTime = date_format($date, 'm-d-Y H:i:s');
if ($ItemId) {
echo $ItemId . " - " . $model . " - " . $dateTime . "<br/>";
}
else {
echo "No Items found " . "<br/>";
}
}
?>