What are the situations of using "on" and "in"?

Question

i need to know,when we talk about a time(ex:night,morning,tommorow,yesterday etc) do we hav to use "on" or "in" befor it?

i mean this way..

i will com tomorow or i will come on tomorow?

pls give some examples and explain me...thanks

Answer 1

These examples should give you some idea:

>>Can you come on Monday?

>>Please do this in the morning?

>>Give me the report in a week's time.

>>Do arrive here on time(on time means punctually)

>>He will be meeting her at night.

For yesterday, today and tomorrow, there is no need to use 'on' or 'in'.

For example:

The soccer team arrived yesterday.

We shall depart tomorrow.

Today is a really hot day.

Answer 2

If we speak of a particular day...we use 'on'

I will come ON Saturday

If less exact:

I will come IN a few days / IN a week

today, tomorrow and yesterday have no preposition.

Answer 3

for diff times we use "in"

like in the morning

to specify the time of a day we use 'in'

n to specify the day we do not use any preposition.

eg.

like i will meet my friend tomorrow.

(to specify a day)

eg

i saw her in the morning

(to specify the time of a day)

bt if u specify a particular day of a week u hav to use "on"

like

i will come to your house on monday.