At, in, on for Time
Use at for specific times.
at 4 o’clock
Use in when you want to talk about a longer period.
in the winter
in the morning
Use on when you’re talking about a certain day.
on Wednesday afternoon
on Saturday night
on New Year’s Eve
In time vs. on time
On time means exactly at the time that you said.
The meeting is at 2 pm. Please come on time.
In time means until a certain deadline.
We had 2 hours for the exam. Most students were able to finish in time.