Update Business Hours via GMB API

I want to update GMB business hours via GMB API.

$timePeriod = new Google_Service_MyBusiness_TimePeriod(); 
$timePeriod->setOpenDay("MONDAY");
$timePeriod->setOpenTime("08:00");
$timePeriod->setCloseTime("10:00"); 
$timePeriod->setCloseDay("MONDAY");
$businessHours = new Google_Service_MyBusiness_BusinessHours(); 
$businessHours->setPeriods($timePeriods); 
$location = new Google_Service_MyBusiness_Location();
$location->setName($name);
$location->setRegularHours($businessHours); 
$params=['updateMask'=>"regularHours"]; 
$updateLocation = $mybusinessService->accounts_locations->patch($name,$location,$params);

This is my code and it works well. But how to set a day is closed with this GMB API.

via Chebli Mohamed