a duration of hours

USAGE SUMMARY

The phrase "a duration of hours" is correct and usable in written English.
It can be used when specifying a time period that lasts for several hours. Example: "The meeting is scheduled to last for a duration of hours, so please be prepared for an extended discussion."

✓ Grammatically correct

Science

News & Media

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

The simulations showed two temporal regimes where the first consists of rapid evaporation for a duration of hours followed by slow evaporation, until evaporation ceases.

Journal of Hydrology

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

*Annual equivalent cost depreciated over 5 years at 5% Variable costs included a local paediatrician's salary at an average rate of $150 per hour for a duration of 2 hours per clinic.

BMC Health Services Research

Nine out of 15 schools (60%) organized PHG courses of a duration of 5 10 hours; three schools (20%) < 5 hours; and three schools (20%) > 10 hours.

BMC Medical Education

The model output (vertically integrated transport) is generated for every 1° × 1° cell and for every minute for a duration of 10 hours from the onset of the tsunami.

Earth, Planets and Space

However, since it would not be sensible to administer a test of more than 6 hours to an individual pupil, 13 largely comparable item clusters, with a duration of 2 hours each, were derived from the core test.

Large-scale Assessments in Education

Continuos EEG was performed for a duration of 12 (10–12) hours.

Intensive Care Medicine Experimental

Standardized training in clinical ultrasonography, with a duration of 25 hours, for physicians without experience in ultrasonography and who attend patients with acute, urgent and critical conditions.

Critical Ultrasound Journal

Well in a new development, Judge Lucy Koh said in a Thursday hearing that Apple CEO Tim Cook would have to testify and be questioned by the plaintiff's attorneys in that case for a duration of four hours, Reuters reports.

TechCrunch

This paper investigates the vertical motions and bending moments of a FPSO platform in regular waves and also in several design storms with a duration of three hours which correspond to the 100 years return period of the North Sea.

Applied Ocean Research

In addition to their medical examinations, the 12 study volunteers rated subjective complaints in a diary program on 4 examination days, for a duration of 4.5 hours every 15 minutes at each visit.

Controlled Clinical Trials

It spans two discs and 80 tracks, covering a duration of 2 hours and 28 minutes.

Wikipedia

Expert writing Tips

Best practice

When specifying a general timeframe, use "a duration of hours" to indicate an activity or event that takes multiple hours without stating an exact number. For example: "The project required a duration of hours to complete."

Common error

Avoid using "a duration of hours" when you have a precise timeframe. Instead of saying "The meeting had a duration of hours, specifically two", use "The meeting lasted two hours".

Linguistic Context

The phrase "a duration of hours" functions as a noun phrase that specifies a length of time measured in hours. Ludwig AI indicates that the phrase is grammatically correct and usable in written English.

Expression frequency: Rare

Frequent in

Science

70%

News & Media

15%

Formal & Business

15%

Less common in

Wiki

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "a duration of hours" is a grammatically sound noun phrase used to describe a period lasting multiple hours. Ludwig AI confirms its correctness and usability. While not exceedingly common, it finds its primary context in scientific and formal settings. It's used to quantify the length of an event or activity. When using this phrase, ensure it aligns with the level of precision required; avoid using it when a more specific timeframe is available. Alternatives like "period of several hours" or "length of several hours" can offer slight variations in formality and emphasis.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

period of several hours

Replaces "duration" with "period" and "hours" with "several hours" offering a slightly more descriptive alternative.

timespan of several hours

Substitutes "duration" with "timespan", emphasizing the extent of time involved.

length of several hours

Replaces "duration" with "length", which is more direct and slightly less formal.

lasting several hours

Uses a verb phrase to describe the time frame, shifting the grammatical structure.

for a few hours

Emphasizes a shorter, less precisely defined duration.

a couple of hours long

Expresses an approximate duration using "a couple of", indicating roughly two hours.

over a number of hours

Indicates an unspecified but likely extended duration.

a handful of hours

Suggests a small and indefinite number of hours.

spanning several hours

Focuses on the fact that event covers the mentioned timeframe.

a stretch of hours

Emphasizes the continuous nature of the period.

FAQs

How can I use "a duration of hours" in a sentence?

Use "a duration of hours" to describe an activity or event that lasts for an unspecified number of hours. For example: "The training session covered "a duration of hours"."

What can I say instead of "a duration of hours"?

Alternatives include "period of several hours", "timespan of several hours", or "length of several hours", depending on the desired level of formality.

Is it appropriate to use "a duration of hours" in formal writing?

Yes, "a duration of hours" is appropriate for formal writing. It clearly indicates a time period lasting multiple hours. You can also consider other options such as "period of several hours".

What's the difference between "a duration of hours" and "lasting several hours"?

"A duration of hours" is a noun phrase describing the length of time. "Lasting several hours" is a verb phrase describing the length of time as an action. Both are acceptable, but they fit different sentence structures.