Grammar : Preposition of Time

In the conversation above, certain preposition are used to talk about time. Look at the following table :

Preposition	Time	Examples
on	Day Date	We did the project on Sunday
		He was born on June 21, 1995
in	Part of day Month year	He left in the morning
		He was born in June, 1995
at		He was born in 1995
	Clock	See me at 09.30 tomorrow

(Taken From : English On Sky 2, 2007)