Used and loved by millions

Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

2 hours period

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "2 hours period" is not correct in standard written English.
The correct form would be "2-hour period" to indicate a duration of two hours. Example: "The meeting will last for a 2-hour period, so please be prepared to stay focused."

⚠ May contain grammatical issues

Human-verified similar examples from authoritative sources

Similar Expressions

55 human-written examples

IAR index by 6 hours period.

The IARindex was calculated for each 6 hours period (H0H6; H18H24H12H18, H18H24), and for 24 hours.

Growth curves were established over a 96 hours period.

Science

Plosone

Measurements of an 18 hours period (12 am–6 are are shown.

The pooled variance for the 0 4 hours period was 5.8 × 10-5 compared to 6.8 × 10-5 for the 4 8 hours period.

Resource selection by female mule deer revealed similar patterns between active (0600 1800 hours) and nonactive (2100 0300 hours) periods.

This tells about one 24-hour period.

News & Media

The New Yorker

That's about 343 courses in a 30-hour period.

The entire season takes place over a 24-hour period.

News & Media

The New York Times

There are three shifts covering the 24-hour period.

News & Media

The Guardian

"It was an extraordinary 72-hour period," Myners said.

Show more...

Expert writing Tips

Best practice

When referring to a specific duration, use the hyphenated form, such as "two-hour period", to correctly function as an adjective modifying the noun.

Common error

Avoid using "2 hours period" as it incorrectly uses a noun phrase where an adjectival phrase is required. Always use "two-hour period" to ensure grammatical correctness.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

60%

Authority and reliability

1.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "2 hours period" is intended to describe a length of time. However, the unhyphenated form results in grammatical incorrectness, as confirmed by Ludwig. The correct form, "two-hour period", functions as an adjective phrase modifying a noun.

Expression frequency: Missing

Frequent in

Science

0%

News & Media

0%

Formal & Business

0%

Less common in

Science

0%

News & Media

0%

Formal & Business

0%

Ludwig's WRAP-UP

In summary, the phrase "2 hours period" is grammatically incorrect. As Ludwig AI points out, the proper way to express this duration is to use the hyphenated form, "two-hour period", which correctly functions as an adjective. While the intent is clear—to describe a length of time—the phrasing needs adjustment to meet standard English grammar conventions. Alternatives like "period of two hours" or "two-hour duration" can also be used. Remember to use "two-hour period" to ensure your writing is grammatically sound.

FAQs

What is the correct way to refer to a time duration of 2 hours?

The correct way is to use the hyphenated form "two-hour period". This functions as an adjective describing the noun 'period'.

Is it grammatically correct to say "2 hours period"?

No, it is not grammatically correct. The correct phrasing is "two-hour period".

What are some alternative ways to express a "2 hours period"?

Alternatives include "period of two hours", "duration of two hours", or simply "two-hour duration".

Why is "2 hours period" considered incorrect?

The phrase "2 hours period" is incorrect because it doesn't follow standard English grammar rules for adjectival phrases. Using the hyphenated form "two-hour period" makes it function as a descriptive adjective.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

Editing plus AI, all in one place.

Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.

Source & Trust

60%

Authority and reliability

1.5/5

Expert rating

Real-world application tested

Most frequent sentences: