In, At, On + Time or Date
When is your birthday?
Mine is ON October 12.
When do you eat lunch?
I usually eat it AT noon.
When does the school year begin in your country?
In mine it begins IN September.
Do you know which preposition to use before times, days, months and years?
Here is a reminder.
in + month or year
In March, In 2003
on + date
(with the year or without it) or day of the week
On April 2, On March 3, 1999, On Saturday
at + clock time, midnight, noon
At 3:30 p.m., At 4:01, At noon
in + season
In the summer, In the winter
in + morning, afternoon, evening
In the morning, In the evening
at + night