​Days, Specific Dates, Holidays

When do I use on?

Her birthday is on October 2nd.
I was in California on February 24th and 25th.
Christmas is in on December 25th.

Dates

I do laundry on Sundays.
My birthday is on Tuesday.
I was in Texas on Monday, Tuesday, and Wednesday.
We were not happy on Friday.

​Days

Examples

I do laundry on Sundays.
I have art class on Tuesdays and Thursdays.
I have P.E. on A days.

​Add an s for events that occur regularly.

Remember...

​Months, Seasons, Years

When do I use in?

Examples

My family goes to Spain in the summer.
It snows in winter.
The leaves fall from the trees in fall.
I love walking in the park in spring.

​Seasons

I go to school in September.
My sister's birthday is in November.
I will go to Europe in July.

Months

​Years

​I was born in 2005.
I went to China in 1999.
I will graduate in 2026.

Remember...

IN is also used for time expressions

• at noon (12:00 pm)

• at midnight (12:00am)

Review - AT

AT is used for time of day, general locations

I eat breakfast at 6:30 am.
I go to school at 7:10 am.
She is at school.
He was at work on Monday.