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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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on which time

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "on which time" is not commonly used in written English and may sound awkward or unclear.
It can be used in contexts where you are referring to a specific point or period in time related to an event or situation. Example: "The project was completed on which time we had originally planned to launch."

News & Media

Science

Wiki

Human-verified examples from authoritative sources

Exact Expressions

23 human-written examples

Morrisons charges £1, £3, or £5, for its one-hour delivery slots, depending on which time of day you want your shopping to arrive.

Carter convinces Seth, the skilled one of the operation, to rework the recording ― playing it through a feeble vintage speaker to re-record it, layering it with fuzz and distortion: "By the time I'd finished, it sounded like a worn 78, the kind of recording that only exists in one poor copy, a thread on which time and memory hang".

News & Media

Huffington Post

That would be either 16 or 17 June, depending on which time zone you happen to follow.

Then they can all look at the same application and write in comments, or compare notes on which time slots are free for an interview.

News & Media

The Economist

Trust ecologist David Brown said he expected fans of literature to make a pilgrimage to the heath to immerse themselves in a landscape Hardy described as "a face on which time makes but little impression".

News & Media

The Guardian

Inheriting Alec Guinness's screen role as the mastermind of a quintet of malefactors who take up residency in a soft-spoken elderly lady's self-evidently vertiginous home, Mr. Capaldi lends a deliciously silken purr to an eventually deathly ruse on which time is running out.

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Human-verified similar examples from authoritative sources

Similar Expressions

37 human-written examples

To place these decisions in some context, share with students the Times interactive feature "Public Opinion and the Occupy Movement," on which Times readers placed themselves on a similar grid in response to the same five statements.

News & Media

The New York Times

He had four fours and two maximums when he was caught at long-on, by which time Bairstow had comfortably found his range.

News & Media

Independent

Another even better chance for Henry went begging late on, by which time he'd been booked — his main contribution to the stat sheet on the night.

A few months on, by which time Mourinho had taken charge of Internazionale, the Milan club visited Manchester United and the Halseys called at their hotel.

News & Media

Independent

This will help you find out which character will be found on hand at which time on any given day of the year.

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Expert writing Tips

Best practice

Ensure the context clearly warrants the use of a more formal or less common phrase; otherwise, simpler alternatives may be more effective.

Common error

Avoid using "on which time" in informal contexts or when simpler alternatives like "when" or "at that time" would suffice. Overusing formal phrases can make your writing sound stilted or unnatural.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

80%

Authority and reliability

3.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "on which time" functions as a prepositional phrase, often introducing a relative clause that specifies a particular moment or duration. As Ludwig points out, the phrase is acceptable, though alternatives are generally preferred in modern writing.

Expression frequency: Uncommon

Frequent in

News & Media

33%

Science

42%

Wiki

25%

Less common in

Formal & Business

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "on which time" functions as a prepositional phrase, establishing a temporal link between events. While grammatically acceptable, it is less common in contemporary English, with alternatives like "at which time" or "during which time" often preferred for improved clarity. Ludwig indicates the phrase is not incorrect, although it can sound awkward to modern ears. Usage is primarily found in news, media, and scientific contexts, but writers should be mindful of its slightly formal tone and consider more common alternatives for general readability.

FAQs

What is a more common substitute for "on which time"?

Alternatives such as "at which time" or "during which time" are generally preferred for clarity and flow.

Is "on which time" grammatically incorrect?

While not strictly incorrect, "on which time" is less common in contemporary English and may sound awkward. Ludwig AI suggests that it's not incorrect but awkward.

How can I use "on which time" correctly in a sentence?

Use "on which time" to refer to a specific point in time related to an event, though consider if "at that time" or "when" might be clearer.

What's the difference between "on which time" and "at which time"?

"At which time" is a more standard and widely accepted way to refer to a specific moment, while "on which time" is less frequently used and can sometimes sound stilted.

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Source & Trust

80%

Authority and reliability

3.5/5

Expert rating

Real-world application tested

Most frequent sentences: