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

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  • Post published:August 29, 2022
  • Post category:Speaking

The main difference between “week’s” and weeks’ is that week’s is used when we talk about singular time unit or one week, on the other hand weeks’ is used for plural time unit or multiple weeks. And weeks is the plural of week that means 7 days.


  • One week’s holidays.
  • Two weeks’ holidays.
  • You have wasted three weeks.

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

Some people ask that out of these three Week’s, weeks’, or weeks which one is correct. All these three words are correct but they are used in different context and in different situations.

When to use Week’s

The word “week’s” is a variant of the word “weeks”. The word “week’s” is used as a possessive determiner to indicate that something belongs to the week. The word “week’s” can also be used as a contraction of the words “week is”. The word “week’s” is not a common word and should only be used in specific situations.


  • One week’s extra bonus.
  • One week’s efforts.
  • One week’s long journey.

When to use Weeks’

The word weeks’ having apostrophe after s is used to express multiple weeks. Today, it is common to hear people say things like “I’ve been working for a few weeks'” or “I have to go to the store for a few weeks’ worth of groceries.” What many people don’t know is that the word “week” doesn’t actually need an apostrophe after the “s” to show that it is plural. The apostrophe is actually used to show possession, as in “the week’s events.”

Interestingly, the word “week” originated from the Old English word “wice,” meaning “a turn.” In fact, the word “wice” is still used today in some dialects of English. Over time, the word “wice” gradually became “week” and eventually lost its apostrophe. So why do we still use it today?


  • Two weeks’ bonus for girls.
  • Three weeks’ team work.
  • Twelve weeks’ projet.

When to use Weeks

The use of weeks is very simple, it is the plural form of word week that means seven consecutive days.

We use word weeks when we have to talk about more than one week. One way to use the word weeks is when referring to a multiple of seven-days period. For example, you might say “I’m going on vacation for two weeks.” In this context, the word weeks refers to 14 consecutive days.

Another way to use the word week is when referring to a unit of time that is equal to four weeks. For example, you might say “My paychecks are every four weeks.” In this context, the word week refers to four consecutive weeks.


  • I want to spend three weeks with her.
  • We are planning to visit hill stations for next two weeks.
  • Seven weeks time is enough to complete this time.

When to use Week When to use Weeks