Understanding how to express time accurately is one of the most practical skills you can develop in English. After a real conversation about setting a date and time for a recording, three essential prepositions stood out: in, on, and at. Each one has specific rules, and mastering them will make your communication much clearer. Let's focus on the preposition in and all the situations where you need it.
How do you use IN with seasons and months?
The preposition in is your go-to choice when talking about seasons of the year [1:40]. English has four seasons: spring, summer, fall (also called autumn), and winter. Here are some practical examples:
- I wear a heavy jacket in winter because it's very cold.
- In fall, you can see how the leaves fall from the trees.
- Weather gets warmer in spring.
Closely connected to seasons, in is also used with the twelve months of the year [2:30]: January, February, March, April, May, June, July, August, September, October, November, and December. Notice how naturally it works:
- My birthday is in June.
- Classes start in January.
- Most people usually go on vacation in December.
How do you use IN with years, decades, and centuries?
When referring to a specific year, the preposition in is always the correct choice [3:06]. For instance, "I started working as a teacher in 2014" or "I was born in 1994." This same rule extends to broader time periods like decades and centuries [3:30].
- In the '90s, music styles such as hip-hop and grunge were very popular.
- Transportation in the 19th century was very different compared to today.
Whether you are pinpointing a single year or describing trends across an entire century, in remains the right preposition.
How do you use IN with parts of the day and duration of time?
When you talk about parts of the day, you will also need in [3:55]. The pattern is straightforward:
- In the morning.
- In the afternoon.
- In the evening.
However, there is one important exception [4:12]. You do not say "in the night." The correct form is at night. This is a particular case worth memorizing right away.
What about duration of time?
The preposition in also appears when expressing how long until something happens [4:45]. Pay attention to these examples:
- We must set a date for our recording in two weeks.
- The movie starts in 10 minutes.
- I'll be there in a moment.
- Give me just in a second.
This use signals that an event will occur after a certain period passes. Whether it's minutes, days, or weeks, in is the preposition that communicates that duration.
What is the best way to remember these rules?
The most effective strategy is creating your own examples for each situation [5:20]. Here is a quick summary of all the moments where in is needed for time expressions:
- Seasons: in summer, in winter.
- Months: in March, in October.
- Years: in 2020, in 1985.
- Decades and centuries: in the '80s, in the 21st century.
- Parts of the day: in the morning, in the afternoon, in the evening.
- Duration: in five minutes, in a few days.
Now it's your turn. What do you usually do in the morning? When is your birthday? What were you doing in 2014? Share your own sentences in the comments and practice each category — that repetition is what makes these prepositions feel natural.
