set specific timezone to for cron job cpanel

I have setup the cron job in cpanel to send push notifications to users. Currently this command is Running according to server timezone. But I want to run this cron job according to "Las Vegas" timezone. So how I can set the timezone to specific cron job command to run on provided timezone time. Below is the command to send notification but I want to execute command according to Las Vegas timezone

/usr/local/bin/php /home/xxxxxx/public_html/dashboard/artisan send_category:notifications

via Chebli Mohamed