Three Magic Words: At, On, and In
These three words can help you show either time or place.
Time
At 12:45, at dusk, at sunrise
On Friday, on our anniversary
In the evening, in June, in 1990, tested in forty minutes
Place
At the library, standing at the edge, walking at the signal, yelling ‘Surprise!’ at Sophie
On the fridge, the building on Sixth Street, on the stage
In the book, in Seattle, in my bedroom