by which date

USAGE SUMMARY

"by which date" is correct and usable in written English.
You can use it to ask for a specific date, for example: "Can you tell me by which date the project needs to be completed?".

✓ Grammatically correct

News & Media

Wiki

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

3 human-written examples

You can see which companies will have to comply by which date.

The Guardian

He did not launch a full attack until Sept. 17, by which date Lee's army was mostly reunited along Antietam Creek.

The New York Times

The takeover panel has set a deadline of January 21, by which date the would-be bidders must either produce a firm offer or walk away for six months.

The Guardian - Business

Human-verified similar examples from authoritative sources

Similar Expressions

54 human-written examples

On the east wall of the transept are two windows by John Hardman which date from 1862 and 1864.

Wikipedia

The latest files published by the Guardian, which date to October 2015, show the misconduct continuing.

The Guardian

The installation is meant to evoke our memories of youth, an impression reinforced by the desks, which date from the 1940's, according to the gallery.

The New York Times

These circumstances still obtain, and despite repeated pledges to close the facility made by President Obama, which date from before his inauguration, the prison and its practices subsist.

The New York Times

The Philippines civil aviation authority said last week that it planned to hire additional safety inspectors to address concerns by international regulators, which date to at least 2007.

The New York Times

The statement is supported by my voluminous files, which date back to 1986, when I hired Ms. Lucas.

The New York Times

A dynasty of at least 16 kings ruled Copán from about 426 to 822, by which latter date the city had entered a serious decline.

Encyclopedia Britannica

To estimate the closeness degree between users, the encounter frequency is further analyzed and employed in this paper, by which the date can rapidly transmitted to the receiving user.

EURASIP Journal on Wireless Communications and Networking

Expert writing Tips

Best practice

While grammatically correct, "by which date" can sound formal. Consider whether a more direct phrase like "by when" or "until what date" might be more appropriate for your audience.

Common error

Avoid using "by which date" in informal communication or when a simpler alternative like "by when" would suffice. Overusing formal phrases can make your writing sound stilted and unnatural.

Linguistic Context

The phrase "by which date" functions as a prepositional phrase introducing a relative clause. It modifies a noun (often implied, such as 'time' or 'point') to specify a deadline or a target completion time. Ludwig AI indicates that this phrase is grammatically correct.

Expression frequency: Rare

Frequent in

News & Media

67%

Wiki

17%

Science

16%

Less common in

Encyclopedias

0%

Formal & Business

0%

Social Media

0%

Ludwig's WRAP-UP

In summary, "by which date" is a grammatically sound phrase used to inquire about or specify a deadline. While correct, Ludwig AI shows the phrase is relatively rare and leans toward the formal side, making it crucial to consider your audience and context. Simpler alternatives like "by when" may be more appropriate in informal situations. This analysis is based on a review of reliable sources, including news outlets and encyclopedias, providing a balanced perspective on the phrase's usage.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

by what date

Replaces "which" with "what", slightly altering the emphasis but maintaining the same meaning.

until what date

Focuses on the period leading up to the date, rather than the date itself.

by when

A more concise way of asking for a deadline, suitable for informal contexts.

deadline of

Highlights the deadline itself, rather than inquiring about it.

latest date

Emphasizes the finality of the date in question.

no later than

Specifies that the date is the absolute latest acceptable time.

by the end of

Focuses on a broader time frame, specifying the end of a period.

on or before

Indicates that the action can occur anytime up to and including the specified date.

target date

Specifies a date that is aimed for, but may not be strict.

scheduled for

States that an event is planned to happen on a particular date.

FAQs

How can I use "by which date" in a sentence?

You can use "by which date" to ask for a specific deadline or timeframe. For example, "Can you tell me "by which date" the report is due?"

Is "by which date" formal or informal?

"By which date" tends to be more formal. Simpler alternatives like "by when" or "until when" may be more appropriate in informal contexts.

What are some alternatives to "by which date"?

Alternatives include "by what date", "until what date", "deadline of", or the simpler "by when".

Which is correct, "by which date" or "in which date"?

"By which date" is the correct and grammatically sound phrase to use. "In which date" is not standard English.