В морозы

In the song "Морзянка" I see
В морозы так нужны нам
Ваши письма тёплые,
Но только ты об этом
Лучше песню расспроси.
My problem is with "В морозы" and its meaning. I suppose it is "During (the time of) ices...", it should be an accusative expresing a description like in :Во время войны.
It is like this? Thanks.

морозы: Холодная зимняя погода; сильные холода.

In the dead of winter, when it's freezing out.

Thanks. More than with the meaning of морозы, my doubt was with the use of В.п. in this case. If it is similar to this in во время войны.

Quote:

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Originally Posted by radomir

My problem is with "В морозы" and its meaning. I suppose it is "During (the time of) ices...", it should be an accusative expresing a description like in :Во время войны.
It is like this? Thanks.

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It is. "в морозы" is in accusative case
Similar examples: в годы войны; в час разлуки; в минуты отчаянья; в холода; в жару (the same case but it's declined differently because of feminine gender); в снегопад; в эпоху интернета etc.
It is similar to "Во время (acc.) войны (gen.)" - during the war

Thank you.

Quote:

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Originally Posted by radomir

it should be an accusative expresing a description like in :Во время войны.
It is like this?

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Yes, and "в войну" is also possible meaning "во время войны".

Thanks. In a page of alphadictionary.con is systematized the Expresion of time in Russian and in this way everything fits. Thank you.