Prepositions of Time

IN IN

Months :

My birthday is IN December

Years

The Mexican Revolution began IN 1910

Centuries

He died IN the 16th century

Seasons

We go to the beach IN summer

ON

Days of the week

I go to the gym ON monday

Dates

We celebrate mother's day ON may 10th

Parts of the day

I eat eggs IN the morning

AT AT

Hours

She sees you AT 3 o'clock

Festivities

I eat turkey AT Christmas