Is it correct to say: "How long is it for dinner?"
When I want to know how much time left to dinner for example, Is it correct to say: "How long is it for dinner?
Is there any other possibility more appropriate?

Thanks!

Question

Is it correct to say: "How long is it for dinner?"
When I want to know how much time left to dinner for example, Is it correct to say: "How long is it for dinner?
Is there any other possibility more appropriate?

Thanks!

Answer

Hi
No, it is best to ask, How long is it till my/our dinner is ready please? or Is it a long time untill dinnertime? When will dinner/tea/supper/breakfast be ready please? this last one is probably the most common one. 
You could also substitute dinner /lunch etc for 'meal' or 'snack' if it is a snack.

Best wishes Gillian

Answer

No, sorry... your sentence sounds as if you want to know how long dinner time will last (and it still sounds unnatural).

Your magic word is "until": "How long (is it) until dinner?"

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