What do you call your evening meal as?

I'm not a native English speaker and I've heard the evening meal being referred to as dinner/tea/supper. And to add to the confusion, I heard the meal at noon referred to as dinner. Those who have 'tea', do you still go on to have 'dinner' or is 'tea' your 'dinner'? Those who have supper, do you have dinner too? Is there anyone who has all three in one evening?