For vs. During
We use during to say when something happens, if it happens in or over a period of time.
We use for to talk about the length of time something lasts.
|They went to Florida||They went at one point in the winter.|
|during the winter.|
|They went to Florida||They went from the beginning to the end of the winter.|
|for the winter.|
|Jack took notes||He wrote information while he was at the meeting, maybe what someone was saying (in a present moment).|
|during the meeting.|
|Jack took notes||He had prepared something prior to the meeting, to be said there, and he carried with him into the room.|
|for the meeting.|
|I'm going to work extra hours||I will be working more than my usual hours throughout the entire period of the spring vacation (from the beginning until the end).|
|during the spring vacation.|
|I'm going to work extra hours||I will be working more than my usual hours in order to make more money (so I will have some extra cash to enjoy the spring vacation).|
|for the spring vacation.|
She phoned me during the week to tell me that she was getting married. (referring to a point in the week)
We were in the cinema for three and a half hours.
Not: … during three and a half hours.
Our flight to New York was delayed for seven hours.
Not: … during seven hours.
We went to Italy for a week.
Not: … during a week.
We can also use for to refer to public holidays and seasons:
He always goes to his mother’s house for New Year.
Not: … during New Year.