exact duration

USAGE SUMMARY

"exact duration" is a common phrase used in written English.
You can use it when you want to specify how long something will last with precision. For example, "The exact duration of the event is three hours."

✓ Grammatically correct

News & Media

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Less than a second passes, the exact duration unpredictable.

The New York Times - Sports

The exact duration of the training program is still under discussion, a senior Pentagon official involved in the plan said today.

The New York Times

A written and signed work contract has to be established, spelling out the exact duration of the contract (three hours), the exact schedule (8 to 11 p.m ., the pay scale and the specific duties.

The New York Times

Still, this back door approach to national pride propelled the English into a brief and unprecedented stint of joyous positivity — lasting for the exact duration of the Games.

The New York Times

The exact duration of human life is unknown, although there is presumably a maximum life span for the human race established in the genetic material.

Encyclopedia Britannica

For their presentation, the Pakistanis displayed a map slide with 171 border stations between the southern edge of the FATA and Iran to demonstrate the excellent control they maintain on their side, along with another listing nine ISAF aircraft border incursions in the past two months with exact duration and meters of penetration, for which they demanded an accounting.

The Guardian

Interview bands who have made it big and you get to sense which are only good at containing monstrous self-love, or appalling self-doubt, or a fizzing mixture of the two, for the exact duration of a promotional commitment (and sometimes a shorter period than that).

The Guardian - Music

Due to several factors, it was impossible to quantify the exact duration of SE.

International Journal of Emergency Medicine

This enables NBP to determine the exact duration of a reservation signal.

EURASIP Journal on Wireless Communications and Networking

The point level sensor successfully recorded the exact duration of vapour/liquid two-phase venting in the water tests.

Process Safety and Environmental Protection

Meteorological drought is a stochastic phenomenon for which exact duration and area affected cannot be predicted (Bayat et al. 2015).

International Journal of Disaster Risk Science

Expert writing Tips

Best practice

When precision is crucial, use "exact duration" to eliminate ambiguity about the length of something, whether it's a project phase, a medical treatment, or an event.

Common error

While "exact duration" is suitable for formal or technical writing, avoid using it in casual conversations where simpler terms like "how long" or "the length of time" might sound more natural.

Linguistic Context

The phrase "exact duration" functions primarily as a noun phrase. It specifies a particular measurement of time, offering clarity and precision. As Ludwig points out, it's commonly found in contexts where detailed specification is important.

Expression frequency: Very common

Frequent in

Science

43%

News & Media

39%

Formal & Business

9%

Less common in

Encyclopedias

4%

Reference

0%

Social Media

0%

Ludwig's WRAP-UP

The phrase "exact duration" is a versatile term used across various fields to denote a precise measure of time. As affirmed by Ludwig, it’s a common phrase in written English employed when specificity is required. The analysis reveals its prevalence in scientific and news contexts, highlighting its role in ensuring clarity and precision. While grammatically sound and widely accepted, it's advisable to use simpler alternatives in informal settings. When the goal is precision, "exact duration" remains a clear and effective choice.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

precise length of time

Replaces "exact duration" with synonyms for both "exact" and "duration".

accurate time frame

Uses "accurate" instead of "exact" and "time frame" instead of "duration".

specific period

Substitutes "exact" with "specific" and "duration" with "period".

defined time span

Employs "defined" as a substitute for "exact" and "time span" as a replacement for "duration".

precise time interval

Replaces "duration" with the more technical "time interval".

actual length

Uses "actual" in place of "exact" and "length" as a substitute for "duration".

the pinpointed amount of time

Replaces "exact" with "pinpointed amount" to emphasize precision.

the particular timeframe

Uses a more descriptive term, "the particular timeframe" instead of "exact duration".

specified timeframe

Replaces "exact" with "specified" to convey a similar meaning.

confirmed length of time

Replaces "exact" with "confirmed" to emphasize verification.

FAQs

How can I use "exact duration" in a sentence?

You can use "exact duration" to specify the precise length of something, such as "The "exact duration" of the meeting is 45 minutes" or "Researchers are studying the "exact duration" of the drug's effects".

What's a less formal way to say "exact duration"?

In less formal contexts, you could use phrases like "precise length", "specific timeframe", or simply "how long" depending on the context. For example, instead of "the "exact duration" of the trip", you might say "the specific timeframe of the trip".

Is it more appropriate to use "exact duration" or "approximate duration"?

"Exact duration" implies a precise and known length of time, while "approximate duration" suggests an estimated or less precise timeframe. Use "approximate duration" when the length of time is not precisely known.

When should I use "exact duration" instead of "duration"?

Use "exact duration" when it's important to emphasize the precision and accuracy of the time period being referred to. If the length of time is already understood to be precise, "duration" alone may suffice.