Talking about time: in, at, on

     We can use “in“, “at“, and “on” to talk about time in different contexts.

In

     We use “in” with parts of the day:

     –  in the morning
     –  in the afternoon
     –  in the evening

     Example:  I watch TV in the afternoon.

At

     We use “at” to say a specific time when something is happening:

     –  at four o’clock

     Example: I get up at 6:30.

     We also use “at” for “night”:

     Example: I don’t like to eat heavy meals at night.

On

     We use “on” to talk about a specific day:

     –  on Sundays
     –  on weekdays
     –  on the weekend

     Example: I have my English class on Saturdays.

Practice this lesson here: PREP001, PREP002.