at, on , in (prepositions)

at	on	in
at 8 o’clock	on Sunday (s)	in April
at  10.30	on 25 April	in 1985
at midnight	on New Year’s Day	in the morning
at the weekend	on Monday morning	in five minutes
at Christmas	on Friday night	in six weeks
at the end of		in two years
at the moment		in a few days

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at

I start work at 8 o’clock

The shops close at 5.30

I can’t sleep at night

on

I don’t work on Sundays

in

I always feel good in the evening

We do not use at/on/in before

this ……..(this morning…..etc)             Are you going out this evening?

last ……..(last week……….etc)              I went there last week    

next……..(next week……. etc)              I will go there next week

every…..  (every day………etc)