 When to use IN, ON, and AT from espressoenglish.net Use IN for months, in January, in October Use IN for seasons, in the summer, in the spring Use IN for years, in 2004, in 1986 And use IN for periods of the day, in the morning, in the afternoon, in the evening The exception is night, we say AT night Use IN for cities and countries, in Tokyo, in Japan Use IN for rooms and buildings, in the kitchen, in the supermarket And use IN for closed or contained spaces, in the car, in the park Use ON for dates and days, on Monday, on February 14th, on my birthday Use ON for transportation, on the bus, on a bike The exception is IN a car Use ON for a surface, on the table, on the wall Use AT for times, at six o'clock, at half past three, at noon, at midnight And use AT for contexts, at school, at work, at a party If you want to learn more about prepositions and improve your English Check out my Advanced English Grammar course, which will help you take your English from good to great It includes 45 detailed lessons, plus writing tasks with teacher feedback You can click on the link in the video or in the description for more information