7. Use of ‘for, in’ In shows how quickly something happens (how long it takes to do something).
Dad will come home in four days. The train journey finished in an hour.
For shows the duration of an action (how long in lasts):
We stayed in Birmingham for 2 days. He went to Tibet for August.
8. Expressions on time = punctual, exact time in time = ok time, not late but almost late in the end = finally at the end (of something) = when something finishes at
In
on
at midnight
in the morning
on Wednesday afternoon
at noon
in the afternoon
on Sunday evening
at lunch time
in the evening
on a fine day
at dusk/dawn
in half an hour
on my birthday
at the same time
in a few minutes
on the day of the wedding
at present
in a moment
on the day of something
at the time
in a second
on time
at last
in time
On New Year’s Day
at the end
in the present
on his anniversary
at night
in the past
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