Is it Week’s, Weeks’, or Weeks? Simple Examples and When to Use

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Week’s, Week’s or Weeks? Which is correct?

Time expressions can be tricky when trying to add apostrophes, but it is quite simple when you study them.

Weeks is used as the plural of “week.” For example, “it’s been three weeks since I’ve seen Alice.”

Week’s is used to show the singular possessive form of “week.” For example, “this week’s newspaper focuses on the death of the famous American singer.”

Weeks’ is used to show the plural possessive form of “week.” For example, “she is taking two weeks’ holiday from work.”

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Weeks, Week’s or Weeks’ Table Summary

WeekSingular Noun
WeeksPlural Noun
Week’sSingular Possessive Noun
Weeks’Plural Possessive Noun


We must use an apostrophe to indicate ownership. This is called the possessive form. Examples of the possessive form include “the dog’s ears” and “the wives’ tales.”

If we write “week” in the singular possessive form (belonging to one week only), we can spell it as week’s.

Examples of Sentences with Week’s

  • Julie is going to go to the hairdresser in a week’s time.
  • Mary has to give a week’s notice if she wants to leave work.
  • The birthday celebration is in one week’s time.
  • The newspaper covers this week’s weather report.
  • I won this week’s draw.
  • Last week’s news was shocking.

Week’s Used as a Contraction

Week’s can also be used as a contraction, though it’s quite informal and much less likely. A contraction is a shortened form of a word. For example, isn’t is short for “is not” and what‘s is short for “what is.

Week’s can be short for “week is” or “week has.”

For example,

  • “This week’s (=week has) been a whirlwind adventure.
  • “This week’s (=week is) flying.”
  • “This week’s (=week is) not going to be fun.”
  • “I am glad this week’s (=week is) over.”


If we are writing “week” in the plural possessive (belonging to more than one week), we spell it as weeks’.

Examples of Sentences with Weeks’

  • I have to give two weeks’ notice if I want to resign from my job.
  • The birthday celebration is in two weeks’ time.
  • I am owed three weeks’ salary.
  • Mary has to give six weeks’ notice if she wants to go on holiday.
  • Julie is going to go to the hairdresser in two weeks’ time.
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Incorrect Way to Write Week’s and Weeks’

Here are some example sentences with week’s and weeks’ not to be confused!

  • I hope to give a presentation in one week’s of time. [incorrect- no ‘of’]
  • I hope to give a presentation in one week’s time. [correct]
  • I hope to give a presentation in one week. [correct]
  • He is due three weeks’ of pay in lieu of notice. [incorrect- we can’t include the apostrophe with ‘of.’]
  • He is due three weeks’ pay in lieu of notice. [correct]
  • He is due three weeks of pay in lieu of notice. [correct]


If we want to make “week” plural, we add an -s, so it becomes weeks.

  • There are only six more weeks left of school.
  • I’ve worked on the project for weeks.
  • How many weeks until the concert?
  • There are 52 weeks in a year.
  • I can’t wait to see my cousin in two weeks.
  • The weeks are flying!

Compound Adjectives with Week

Compound adjectives occur when we combine two words with a hyphen to describe a noun. We usually use a hyphen when the compound adjective comes before the noun.

We don’t need to add an ‘s’ for compound adjectives.

For example:

  • Adam went on a six-week volunteer trip to Africa.
  • Melissa took a one-week break from work.
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When do weeks take an apostrophe?

We use an apostrophe when weeks is possessive—examples: a week’s notice, two weeks’ notice, three weeks’ notice.

Is it last week or last week’s?

We can use last week or last week’s, depending on the context. For example, “I went to the bank last week” and “last week’s meeting went very well.”

What does a week’s time mean?

We use this phrase to mean one week’s worth of time—a period of seven consecutive days. For example, I will be free to meet up in a week’s time.

When do you use weeks?

Weeks is the plural form of the noun “week.” We use the word weeks when we are talking about more than one week.

What is the difference between next week and the coming week?

Next week and coming week both mean the same thing. Next week is the week that follows the week that includes today. The coming week sounds more formal, and we mostly say this near the end of the current week.

Does weeks need an apostrophe?

Weeks doesn’t require an apostrophe because the -s make it plural. If you want to make weeks possessive, then you will need to add an apostrophe. For example, “This week’s newspaper.”

Next week or the next week?

We use next week when we are talking about the week immediately after this week that includes today; for example, “I am going fishing next week.”

We might use the next week to describe a week in the future or the past. For example, “I will go to France with my friends next week, and the next week I will go to Italy with my family.

We can also say the week after that instead of saying the next week.

In Conclusion

Week’s, weeks’, and weeks are all correct, but the placement or removal of the apostrophe depends on whether the sentence is possessive or plural.

I hope you found this article helpful. If you did, leave a comment down below and let me know. Also, I’d love to hear your own grammatically correct example with weeks, weeks’ and week’s!

I'm an Irish tutor and founder of TPR Teaching. I started teaching in 2016 and have since taught in the UK, Spain, and online.

I love learning new things about the English language and how to teach it better. I'm always trying to improve my knowledge, so I can better meet the needs of others!

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