in a hour

USAGE SUMMARY

The phrase "in an hour" is grammatically correct and commonly used in written English.
It is used to indicate a specific amount of time in the future. For example: - I will finish my work in an hour. - She will arrive at the airport in an hour. - The concert will start in an hour. - We have to leave in an hour. Note that "an" is used instead of "a" before "hour" because "hour" starts with a vowel sound.

⚠ May contain grammatical issues

News & Media

Wiki

Human-verified examples from authoritative sources

Exact Expressions

18 human-written examples

He was famous for workouts that were incredibly short: over in a hour.

The New Yorker

It's not that I don't enjoy a good mystery that comes and goes in a hour.

The Guardian - TV & Radio

Aided by a heart-rate monitor, he maintains a maximum heart rate of 110 beats per minute, which enables him to cover about 12 miles in a hour.

The New York Times - Health

For example, in a show like NBC's "E.R.," local stations sell 4 or 5 commercials in a hour while a network sells about 15 commercials.

The New York Times

Give him the right scene and come back in a hour". So, I went to a drugstore and had a sandwich and a coke and looked over this thing.

The Guardian - Film

This was the era of the "best performance" Hour record, where riders used any technological advantage at their disposal to push the limits of what was possible in a hour.

The Guardian - Sport

Human-verified similar examples from authoritative sources

Similar Expressions

42 human-written examples

In January, he set the Guinness World Record for most people chanting together when he led 128,918 people in a-hour chant for world peace.

HuffPost

"Like, in an hour".

The New York Times - Arts

Frankfurt opening in an hour.

The New York Times

Me: In an hour, maybe.

The New Yorker

"Most deep knee bends in an hour.

The New Yorker

Expert writing Tips

Best practice

Always use the correct article "an" before "hour" when referring to a duration of one hour. This ensures grammatical accuracy.

Common error

Avoid using "a" before "hour"; instead, use "an" because "hour" begins with a vowel sound, even though it is not a vowel.

Linguistic Context

The phrase, though grammatically incorrect as "in a hour", is intended to function as an adverbial phrase modifying a verb, indicating when an action will take place. The correct form "in an hour" is used to specify a future time.

Expression frequency: Common

Frequent in

News & Media

75%

Wiki

15%

Science

10%

Less common in

Formal & Business

0%

Academia

0%

Encyclopedias

0%

Ludwig's WRAP-UP

The phrase "in a hour" is a common expression used to indicate a time frame, but it's grammatically incorrect. The correct form is "in an hour", as confirmed by Ludwig AI, because "hour" begins with a vowel sound. Although commonly found in various contexts such as news, the incorrect form detracts from the writing quality. Ensure you use "an" instead of "a" to maintain grammatical accuracy. Using alternatives like "within an hour" can also add variety to your writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

within an hour

Uses "within" to emphasize the time constraint being inside the one-hour mark, and corrects the article.

in about an hour

Adds "about" to indicate an approximate timeframe, and corrects the article.

in less than an hour

Specifies that the action will occur before the hour is up, and corrects the article.

in approximately an hour

Replaces "about" with the more formal "approximately", and corrects the article.

in the next hour

Focuses on the immediacy of the coming hour, and corrects the article.

one hour from now

Emphasizes the duration as a single unit of time from the present.

in sixty minutes

Replaces "hour" with its equivalent in minutes for specificity.

after sixty minutes

Indicates the action will commence at the end of the 60 minutes. Specifies in minutes.

in a short while

Generalizes the timeframe to a less specific duration.

shortly

Offers the most concise and informal alternative.

FAQs

How do I properly use the phrase "in a hour" in a sentence?

The correct way to phrase this is "in an hour". For example, "I will be there "in an hour"".

What is a grammatically correct alternative to "in a hour"?

The grammatically correct alternative is ""in an hour"". The article "an" is used because "hour" starts with a vowel sound.

Is there a difference in meaning between "in a hour" and "in an hour"?

While "in a hour" is understandable, it is grammatically incorrect. The correct phrase is ""in an hour"". They both refer to a time duration of sixty minutes.

Can I say "within an hour" instead of "in an hour"?

Yes, "within an hour" is a suitable alternative to "in an hour", and they both have a similar meaning of something occurring before the end of the sixty-minute period.