$query = "SELECT campaign_criterion.ad_schedule.start_hour, campaign_criterion.ad_schedule.start_minute, campaign_criterion.ad_schedule.end_hour, campaign_criterion.ad_schedule.end_minute FROM ad_schedule_view";
$stream = $googleAdsServiceClient->searchStream($accountId, $query);
foreach ($stream->iterateAllElements() as $googleAdsRow) {
$obj = $googleAdsRow->getCampaignCriterion()->getAdSchedule();
$SMin = $obj->getMinuiteOfHour();
$SHour = $obj->getStartHour()->getValue();
$EMin = $obj->getEndMinute();
$EHour = $obj->getEndHour()->getValue();
$time = $SHour . ":" . $SMin . " to " . $EHour . ":" . $EMin;