I'm Kavi and I'm Rossiya.

When English speakers talk about time and place, they use these three little words a lot in on and at, in on and at our propositions.

An easy way to know how they work is to look at how they describe time or place and whether their descriptions are general or specific.

A general description of time prefers to periods, months, years and centuries.

Here you use the proposition in, like in the morning in April in 2017 in the 21st century.

For more exact kind description, like the days of the week, holidays and dates use on at is used to be even more specific at one PM at noon at seven o'clock.

This model also applies to places use in for general locations like neighborhoods, cities and countries.

I live in Washington.

Let's meet in Chinatown, used on more specific locations such a streets, avenues, large vehicles and island.

I work on M Street.

I'm on the train and used ask when you're talking about a very specific place but doesn't address or specific location.

She's at home.