PREPOSITIONS OF TIME

                                            PREPOSITIONS OF TIME
                                            AT\IN\ON
                           
                                 AT- A precise  time
                                IN- Months, Years, Centuries and Long periods
                               ON-  Dates  and Days of the week


                     AT                                IN                                         ON

• at 1 o´clock                     in June                                        on Sunday
• at noon                            in the past                                   on Christmas day
• at bedtime                       in the future                                on new years eve
• at dinnertime                   in 2008                                       on the 22 of July\ on the 22nd
• at 9:30 am                       in the next Century                    on my birthday
• at sunrise                         in the ice age                             on the last day
• at sunset                          in the 1980s                               on 6 April
• at the moment                 in winter                                    on children´s day
• at midnight                      in summer\ in the summer        on Monday

                               LOOK AT THE EXAMPLES BELOW

• I wake up at 6:30 am on weekdays
• The school bell rings at 8:30 am 
• I read a book for my Children at bedtime
• She is very busy at  the moment, please call again later.
• We do not eat heavy food at dinnertime
• It gets colder at sunset
• I was bored on my birthday
• My parents said that on the last days people will be lovers of money
• My Mother`s birthday is on the 23 of March
• I wont go to school on Monday 
• I hope The cost of living would be cheaper in the next Century
• We are no more in the 1970s, so wake up
• If I work hard I might Graduate in 2017
• I used to play with toys in the past, but not anymore.

notice the use of the preposition of the time at following standards expressions:

expressions	examples
at night	The moon shines at night
at the weekends*	I work at the weekends, so tiring
at easter\ Christmas	I do not like to go to church at easter.
at the same time	We did not finish eating at the same time
at present	They are not at work at present

attention: In some varieties of English people say " on the weekends" and " on Christmas"

notice the use of the prepositions of time in and on these are common expressions

        in                                 on

in the night	on Sunday night
in the morning	on Wednesday morning
in the mornings	on Friday mornings
in the afternoon(s)	on Monday afternoon(s)
in the evening(s)	on Sunday evening(s)

When we say  last, next,every,his  we do not also use  at, in, on

• I went to Africa Last September. (not in last September)
• My parents are coming back next weekend. (not on next weekend)
• I do not go home every Summer. (not at every summer)
• I will call you this evening. (not at this evening)