twice the duration

USAGE SUMMARY

The phrase "twice the duration" is correct and usable in written English.
It can be used when comparing lengths of time, indicating that one duration is double another. Example: "The new project will take twice the duration of the previous one, extending our timeline significantly."

✓ Grammatically correct

Science

News & Media

Wiki

Human-verified examples from authoritative sources

Exact Expressions

18 human-written examples

Scott Kelly, 50, has been sent to the International Space Station for an entire year, twice the duration of a normal stay on the facility, while his identical twin brother Mark remains on the ground.

Independent

Notice that the maximum delay that a frame can experience is upper-bounded by twice the duration of a cycle.

EURASIP Journal on Wireless Communications and Networking

It is notable that the observed 60 seconds distance is twice the duration of the fixed skip-step.

Human-centric Computing and Information Sciences

(We note that since a matched filter is applied at the input of the receiver, strictly speaking, the length of the long preamble after filtering at the receiver is at least twice the duration of.

EURASIP Journal on Advances in Signal Processing

Notice that, as explained in Section 3.4, we designed our protocol in such a way that the maximum delay tolerated by the application being served is equal to twice the duration of a cycle.

EURASIP Journal on Wireless Communications and Networking

Block-average time courses (Figure 1) revealed an early fMRI signal increase that returned to the baseline level only after 18 seconds in both groups (twice the duration of the applied stimulus).

Plosone

Human-verified similar examples from authoritative sources

Similar Expressions

42 human-written examples

Even if this is a typo and the lifetime was 0.005s, I am still incredulous because the screen refresh rate was 100Hz, so the frame duration was 0.01s and this is twice the supposed duration of the dipoles!

F1000Research

Total session duration was twice the length of total stimulation time (or equivalent for sham).

Brain Stimulation

Scott, who is six minutes younger than his brother, will blast off in a year from now to spend 12 months aboard the International Space Station – twice the normal duration of a stay on the facility and the longest ever by an astronaut.

Independent

Video duration is randomly defined on a per-user basis with a uniform distribution to a maximum of 3 min. A video session drop model is also included, where a session is terminated if session time is more than twice the video duration.

EURASIP Journal on Wireless Communications and Networking

8) In case, the relay path is chosen but the relay fails to receive the packet from the source (due to increased interference), the source then waits for the timeout (set to twice the SIFS duration) and then repeats the transmission cycle.  .

EURASIP Journal on Wireless Communications and Networking

Expert writing Tips

Best practice

Ensure the baseline duration is clearly defined in the preceding text so the comparison is unambiguous to the reader.

Common error

Do not follow the phrase with comparative adjectives like 'longer'. Saying "twice the duration longer" is redundant because 'twice the duration' already establishes the comparative length. Simply state that 'X was "twice the duration" of Y'.

Linguistic Context

The primary function of "twice the duration" is to act as a quantifying noun phrase. It establishes a mathematical ratio (2:1) between a specific span of time and a baseline. According to Ludwig, it often appears in the predicate of a sentence to provide exact measurement data.

Expression frequency: Common

Frequent in

Science

80%

News & Media

15%

Wiki

3%

Less common in

Formal & Business

1%

Reference

0.5%

Social Media

0.5%

Ludwig's WRAP-UP

The phrase "twice the duration" is a highly effective linguistic tool for expressing a twofold temporal increase with scientific precision. Analysis from Ludwig confirms that the expression is widely used in high-authority journals like The British Medical Journal and eLife, appearing 18 times as an exact match in the sample data. It is most frequently found in clinical and experimental contexts where defining the relationship between two time periods—such as treatment lengths or cardiac cycles—is essential. While it is interchangeable with more common phrases like twice as long, the noun-focused structure of "twice the duration" provides a more technical tone that is favored in academic writing. For professional writers, it represents a reliable and grammatically sound way to convey relative time measurements without ambiguity.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

double the duration

Uses a verb-derived noun and is slightly more common in business settings

two times the duration

Explicitly uses the number to emphasize the multiplication factor

twice the length of time

Adds specificity by explicitly mentioning 'time' as the dimension

twice as long

A more common and slightly less formal comparative structure

twice the time

A simpler and more concise version of the phrase

twice the period

Substitutes 'duration' with 'period', often used in cyclical contexts

double the length

Interchangeable when the length clearly refers to a temporal measurement

two times the length

Similar to 'two times the duration' but focuses on the span or extent

double the timeframe

Suggests a doubling of a scheduled window or specific interval

twofold duration

Uses an adjective that implies a doubling in magnitude or quantity

FAQs

How do I use "twice the duration" in a sentence?

You can use it to compare two time periods, for example: "The recovery period was "twice the duration" of the surgery itself."

What can I say instead of "twice the duration"?

Depending on your context, you can use alternatives like "double the duration", "twice as long" or "twice the time".

Is "twice the duration" correct English?

Yes, it is perfectly correct. Data from Ludwig shows it is a standard expression in high-quality sources such as The British Medical Journal and Independent.

What is the difference between "twice the duration" and "twice as long"?

The phrase "twice the duration" is a noun phrase often preferred in formal or scientific writing, while "twice as long" is an adverbial/adjective construction more common in everyday speech.