If someone on clicks on an AdSense ad, then does the click immediately show in the website owner's AdSense account reports ? If not immediately, then after how much time-lag, does the click show in the website owner's AdSense account reports ?
just check at the end of the day, no need to see it every 30 minutes. Use that time to work on your site more.
it's approx. 1 hour. And it could eb wise to check every hour or so, you kmight see some click fraud comming up that you cant see later ($0,00 clicks)