A day is the time from one midnight to the next. We use it to talk about time or dates. It is one of the basic units to measure time.
I work five days every week.
She sleeps eight hours each day.
Day means the time when there is light outside. It is the opposite of night. We often say 'during the day' to mean when the sun is up.
The days are longer in summer.
I like to play outside during the day.
Days can mean specific dates or special occasions. For example, holidays or birthdays are called days. People remember important days every year.
Her birthday is on a special day.
Many important days are in this month.
Days can describe a time in the past or a lifetime. For example, 'in the old days' means a long time ago. It talks about a period in history or life.
In the days of my youth, I was very strong.
The days of knights are in old books.
Days can show how long you have to do something. For example, a deadline can be in days. It talks about a time limit or period to complete a task.
You have three days to finish this work.
The exam will last two days.
Days appears in many expressions to talk about the past or present time. For example, 'those were the days' means happy old times. It also means current times in 'these days'.
In these days, people use phones a lot.
Those were the days of fun and joy.
'Days' is the plural form of 'day.' It means more than one day or multiple 24-hour periods. It is very common to use days to talk about time.
Days go by quickly when you are happy.
We see many good days in summer.
