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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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last 1 hour

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "last 1 hour" is not correct in standard written English; it should be "last hour" or "last one hour." You can use it when referring to a time duration that has just occurred or is being measured, typically in contexts like data analysis or reporting.
Example: "The system has recorded a significant increase in traffic over the last hour."

⚠ May contain grammatical issues

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

5 human-written examples

The profile window of A-greedy (when it employs its current adaptivity loop) is realized as a time-based sliding window that maintains statistics computed from network packets captured during either of the following time periods: the last 2 weeks, the last 1 week, the last day, the last 12 hours, the last 6 hours, the last 1 hour and the last 10 minutes.

It is not, however, the cheapest activity; tickets will cost £50 per person and the experience is expected to last 1 hour 45 minutes.

According to the AP, the moment of totality -- when the Earth's shadow completely blocks the moon -- will last 1 hour and 40 minutes during tonight's lunar eclipse.

News & Media

Huffington Post

The whole thing will last 1 hour and 43 minutes, making it the longest eclipse of the 21st century, and only four minutes off being the longest of all time.

News & Media

Vice

All but the first group session will last 1 hour, and will include weighing the patient, a light snack of study appropriate foods, and other tools and methods (The first session lasts 1.5 hours).

Human-verified similar examples from authoritative sources

Similar Expressions

55 human-written examples

The special lasts 1 hour, 30 minutes.

News & Media

Independent

During Phase 2, monthly sessions lasted 2 hours and during Phase 3, monthly sessions lasted 1 hour.

The data collection lasted 1 hour 30 minutes.

A consultant moderates the conference that typically lasts 1 hour.

The walk-out will last 48 hours.

News & Media

Independent

Her ordeal would last 15 hours.

News & Media

Independent
Show more...

Expert writing Tips

Best practice

For emphasizing the very end of something, "final hour" may be a good fit. For example, "We saw a surge in donations during the final hour of the campaign."

Common error

Avoid using "last 1 hour" as it is grammatically awkward. Instead, opt for "last hour" or "previous hour" to maintain clarity and correctness in your writing.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

88%

Authority and reliability

3.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "last 1 hour" functions as a time specifier, intending to denote the most recent 60-minute period. Ludwig AI flags it as grammatically incorrect; the proper form would be "last hour".

Expression frequency: Uncommon

Frequent in

News & Media

40%

Science

40%

Formal & Business

20%

Less common in

Wiki

0%

Encyclopedias

0%

Social Media

0%

Ludwig's WRAP-UP

In summary, while the phrase "last 1 hour" aims to specify the most recent 60-minute period, Ludwig AI advises that it is grammatically incorrect. The accurate forms are "last hour" or "previous hour". Though present in news and scientific sources, it's best to use the grammatically correct alternatives, especially in formal writing, to maintain clarity and professionalism. The phrase's intent is usually to describe recent activity or changes within a specific timeframe.

FAQs

How should I correctly refer to a time duration?

Instead of "last 1 hour", use "last hour" or "previous hour". Both are grammatically sound and widely accepted.

What alternatives can I use for "last 1 hour" in formal writing?

In formal contexts, prefer "previous hour" or "past hour". These options maintain a professional tone while correctly indicating the duration.

Is "last 1 hour" grammatically correct?

No, "last 1 hour" is not considered grammatically correct. The standard usage is "last hour" or "previous hour".

What's the difference between "last 1 hour" and "last hour"?

While "last 1 hour" is technically incorrect, "last hour" is the grammatically accepted form. It refers to the most recent 60-minute period.

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Source & Trust

88%

Authority and reliability

3.5/5

Expert rating

Real-world application tested

Most frequent sentences: