day
A day is a twenty-four period. It’s also the period of time that happens between sunrise and sunset. The word “day” is different from “today.”
- What do you do every day?
- What are you doing today? (today = on this present day)
- What day is today? (Answer: Today is Sunday.)
- Are you having a good day?
- Try to make every day count.

What a beautiful day it’s going to be!
a. day = 24 hours
A day is a basic unit of time. It’s a 24-hour period. It’s the time when we live our lives, and it’s the amount of time we use to measure our lives.
- There are 365 days in a year.
- There are seven days in a week.
- There are 30 or 31 days in a month.
- What day is today? (Monday, Tuesday, Wednesday, etc. Each named day of the week is a day, not a date.)
- How many days a week do you work?
- In ten more days, it will be June.
- Tomorrow is Saturday. The day after tomorrow is Sunday.
- How many days does it take to go from here to New York?
- How many days will it take to finish this project?
- I look forward to every day of my life.
- Try to make every day count.

- A: What do you do every day?
- B: I’m busy at work every day.(or)
- B: I go to work every day.
- B: I go to school every day.

- The measurement of a day is the full rotation of the Earth in relationship to the sun. This takes 24 hours to complete.
b. day = daytime
A day is also the time available between sunrise and sunset, or it’s the time between waking up and going to sleep. In this case, the opposite of day is night.
- What do you usually do during the day?
- I like to wake up early to begin the day.
- Many people begin the day with coffee or tea.
- At the end of the day, people go to sleep.
- How do you begin your day?
- Many people work during the day and sleep at night.
- It’s nice to be able to work outside while there is daylight. (The word “daylight” is a compound noun.)
- The sun goes down at the end of the day.

- For her, the day begins with a walk to work.

- The opposite of day is night.
c. daily
The word “daily” is a form of “day” that can be used as an adjective or as an adverb.
- What are your daily responsibilities at work? (adjective)
- Many people have a daily commute to work. (adjective)
- I like to read the daily newspaper. (adjective)
- It’s a daily activity. (adjective)
- I read it daily. (adverb)
- You should exercise daily. (adverb)
- Walking daily is a good way to stay fit. (adverb)

- His daily responsibilities require a lot of concentration.
d. simple expressions that include the word "day"
- What a day! (Today is beautiful.)
- I’m having a hard day. (I’m having some problems today.)
- I’ve had quite a day. (It was a hard day or it was an exciting day.)
- Let’s call it a day. (Let’s stop working and go home.)
- That really made my day. (That made me happy.)
- Make my day! (This is a famous quote from a Clint Eastwood movie in which his character dares someone to challenge him.)
- Have a good day! (This is another way to say “goodbye.”)

- He had a hard day today.
Published on May 23, 2025