Prepositions in, on, at (time and place)

in 2020, on Monday, at 5 o'clock; in Paris, on the table, at home.

Preposition	Use	Examples
at	exact times, fixed moments	at 5 o'clock, at noon, at night, at the weekend (UK)
on	days and dates	on Monday, on 3 May, on my birthday
in	months, years, seasons, parts of the day	in May, in 2020, in summer, in the morning

Preposition	Use	Examples
in	inside, cities, countries	in the box, in Paris, in France
on	on a surface	on the table, on the wall, on the second floor
at	a point, a place of activity	at home, at work, at school, at the station

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