at half-hour intervals

USAGE SUMMARY

The phrase "at half-hour intervals" is correct and usable in written English.
It can be used to describe a schedule or frequency of events occurring every thirty minutes. Example: "The bus runs at half-hour intervals, making it convenient for commuters."

✓ Grammatically correct

News & Media

Science

Wiki

Human-verified examples from authoritative sources

Exact Expressions

17 human-written examples

At other times, the ferries will leave at half-hour intervals and make the two stops.

The New York Times

The parents in the study kept diaries, where they jotted down the intimate details of their daily lives at half-hour intervals three days a week.

The New Yorker

Most load data are available at half-hour intervals; averaging data over periods longer than a minute is shown to under-estimate the proportions of both export and import.

Applied Energy

The paintings had been under the guns of guard all the way across the country and the car had been inspected at half-hour intervals by an Italian government official.

The New Yorker

The Alibus airport shuttle leaves at half-hour intervals from outside the arrivals hall, and stops at Piazza Garibaldi (1), where the main railway station is located, on the way to Piazza del Municipio (2).

Independent

An architecture firm was hired to sort out the infrastructure and the MCA brought in additional staff, extended its hours, and launched an online ticketing system in order to offer 150 tickets and audio headsets at half-hour intervals.

The Economist

Human-verified similar examples from authoritative sources

Similar Expressions

43 human-written examples

Measurements were taken at half hour intervals for 12 h using Agilent microarray platforms and at 24 h for select members using QPCR.

Biochimie

Taste the soup after half an hour, and at half hour intervals.

WikiHow

Each sample corresponds to 100 pings, and the samples were taken at roughly half-hour intervals.

Stanford University

At the New York Public Library's West Farms branch in the South Bronx, computers are rationed like treadmills at a busy gym, in half-hour intervals.

The New York Times - Tech

There's a prostitute!" Once I regain my composure, my brother explains that several of my neighbours got in touch with him to say they are getting suspicious because they keep seeing men coming and going form my house, in half-hour intervals, at all times of the day.

Vice

Expert writing Tips

Best practice

When describing schedules or recurring events, use "at half-hour intervals" to clearly communicate the frequency. For example, "The tours depart at half-hour intervals from 10 AM to 4 PM."

Common error

Avoid using "at half-hour intervals" when the timing is approximate or irregular. If the events only roughly occur every thirty minutes, use qualifiers like "approximately" or "roughly" to avoid misleading your audience.

Linguistic Context

The phrase "at half-hour intervals" functions as an adverbial phrase, modifying verbs by specifying the frequency or timing of an action. It indicates how often something occurs, adding detail about the scheduling or regularity of an event, as seen in Ludwig examples.

Expression frequency: Common

Frequent in

News & Media

40%

Science

35%

Wiki

10%

Less common in

Academia

5%

Encyclopedias

5%

Formal & Business

5%

Ludwig's WRAP-UP

The phrase "at half-hour intervals" is a common and grammatically correct way to describe events occurring every thirty minutes. Ludwig AI confirms its usability, and our analysis reveals its prevalence in News & Media, Science, and Wiki sources. Alternative phrases include "every thirty minutes" and "every half hour". When using this phrase, ensure the timing is reasonably consistent and precise to avoid misleading your audience. Use "at half-hour intervals" to provide clear and specific information about the timing of scheduled or recurring events.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

every thirty minutes

This is a direct and simple alternative that specifies the time frame.

every half hour

This alternative is very similar, replacing "at" with "every" but keeping the meaning almost identical.

at intervals of thirty minutes

This is a more verbose and formal way of stating the same concept.

at thirty-minute increments

This option focuses on the increase or addition of time in segments of thirty minutes.

on a semi-hourly basis

This alternative is more formal and emphasizes the regular occurrence.

thirty minutes apart

This alternative highlights the separation in time between events.

spaced thirty minutes apart

Similar to 'thirty minutes apart', but emphasizes the spacing or distribution over time.

with a thirty-minute gap

This variation emphasizes the period of time separating two events or actions.

happening semi-hourly

This version uses the adverb 'semi-hourly' to directly describe the frequency of the event.

in thirty-minute cycles

This option suggests a recurring pattern or rotation every thirty minutes.

FAQs

How can I use "at half-hour intervals" in a sentence?

You can use "at half-hour intervals" to describe events that occur every thirty minutes. For example, "The buses run "at half-hour intervals" throughout the day."

What's an alternative to saying "at half-hour intervals"?

Alternatives include "every thirty minutes", "every half hour", or "on a semi-hourly basis", depending on the context.

Is it more formal to say "at half-hour intervals" or "every thirty minutes"?

"At half-hour intervals" and "every thirty minutes" are generally interchangeable. However, "at half-hour intervals" may sound slightly more formal than "every thirty minutes".

When is it appropriate to use "at half-hour intervals"?

It's appropriate when describing scheduled events, measurements taken regularly, or processes that repeat consistently every thirty minutes. For less consistent intervals, use phrases like "approximately every thirty minutes".