. in ile günün üç bölümü kullanılır. (in the morning, in the afternoon, in the evening.)

I get up at seven o’clock in the mornings.
We are going to play tennis in the afternoon.
They are coming to the party in the evening.

2. in ile aylar kullanılır. in January, in March, in December.

My birthday is in February.
Schools start in September.
It rains a lot in November.
Kaynak: ReformTürk http://www.reformturk.com/showthread.php?p=126787

3. in ile mevsimler kullanılır. (in Spring, in Summer, in Autumn.)

The weather is warm in Spring.
The weather is hot in Summer.
The weather is cold in Winter.

3. in ile yıllar kullanılır. (in 1995, in 2001.)

They came to Istanbul in 1985.
Turkish National Team will be the champion in 2002.

4. in ile zaman dilimleri kullanılır. (in two weeks’ time, in five years’ time, in three hours’ time.)

You will train in two week’s time.
They built it in five year’s time.
She will be ready in three hour’s time.
ON

1. on ile hafta içi günler kullanılır. (on Sunday, on Wednesday, on Saturday.)

He is coming on Monday.
We don’t work on Saturdays.

2. on günün sabah, öğleden sonra ve akşam vakitleri için kullanılır. (on Monday morning, on Friday evening.)

The meeting is on Wednesday afternoon.
We are leaving on Sunday morning.

3. on ile tarihi ifade ederiz. (on February 20, on 15 March 2002.)

It is dueon June 18.
Her birthday is on 5 August 1976.
Our Youth and Sport Festival is on May 19.

4. on ile noel günü ifade edilir. (on Christmas day.)

They will have a party on Christmas day.
AT

1. at ile saatler kullanılır. (at 2 o’clock, at half past five.)

He gets up at 7 o’clock.
The match starts at quarter to ten.

2. at geceyarısı ile kullanılır. (at midnight)

there was a noise at midnight.

3. at ile hafta sonunu anlatırız. (at weekend)

We went to a good restaurantat the weekend.

4. at ile noelde yapılanlar anlatılır. (at Christmas)

They had a good time at Christmas.
NO PREPOSITION

Bazı zaman zarfları vardır ki bunlar in on at almazlar ve tek kullanılırlar.

today
tomorrow
last night
last week
next month
next year
tomorrow evening
tonight
every day yesterday
the day after tomorrow
the day before yesterday
two weeks ago
yesterday evening
this evening
this afternoon
this morning
every year



in on at kullanımı