At night?

"at night" covers any time when it is dark. You might say "night" is the opposite of "light".
Depending on the time of year, night may be a longer period of time (in winter) or a shorter period of time (in summer).

Morning changes to afternoon at 12.00 - noon.

Apart from that there is no set time when afternoon becomes evening, evening becomes night, or night becomes morning. It depends on context and the opinion of whoever is speaking.

For example, 3am could be considered 'the middle of the night' if your baby wakes you up crying then, or 3am in the morning if you are rolling home aft

Thanks for your answers
But I have to say I am not satisfied with the answers.As far as I understand at night hours
depends on the pople who wish to use it. But Can we say 22.00 ,23.00.23.59 at night?
I think yes. but can we say 9.00 pm as night I think not.................

I suggest that you look "night" up in a good dictionary. You will no doubt be surprised to learn that night means any time between sunset and sunrise, especially the dark hours. There is no sharp dividing line between evening and night; and by the way, we don't usually use a 24-hour clock. Yes, in my opinion, 9:00 P.M. is night. As for evening, it can be the period of decreasing daylight that

I would also say that 9:00 P.M. is night.

Ah, sorry I would say that 9pm is late evening.

And, in England at least, you can't go by whether it is light or dark. In winter it gets dark here very early, about 4.30pm but that certainly isn't night. In summer it is light until about 10.30pm but that certainly isn't daytime.

And what about those countries with 24 hr sun or darkness at different times of the year?

So, by logical inference, I'm pretty old!

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Sometimes the context defines "at night". For example, in "I don't

I wonder whether Redkiddy's question was more specific - i.e. how do we colloquially divide the 24 hours between the particular phrases 'X o'clock in the morning', etc.

These phrases answer or preclude the question: 'X a.m. or X p.m.?'. This is different from asking 'how do you define afternoon', 'night', etc. It's true that some people say 'I'm going out this evening' when they mean

i would say this is a question more on opinion and so people will have different thoughts of it. For me id probably say around 19:00 to 03:00.

Anonymousi would say this is a question more on opinion and so people will have different thoughts of it. For me id probably say around 19:00 to 03:00.

I suppose that 12 years after the question is not too late to answer.
But your answer has several grammatical mistakes.