"within which duration" vs "within what duration"

Question

"within which duration" vs "within what duration"

Both "within what duration" and "within which duration" are grammatically correct, but they are used in slightly different contexts. "Within what duration" is more commonly used and sounds more natural in everyday language. On the other hand, "within which duration" may sound a bit more formal or technical. The choice between the two depends on the formality of the context.

Last Updated: March 29, 2024

This phrase is also used to inquire about the specific time frame within which something is expected to happen or be completed, but it may sound more formal or technical compared to "within what duration".

Examples:

Can you complete the project within which duration?
Within which duration should I expect a response?
Tell me within which duration you need the report.
Do you know within which duration the repairs will be finished?
Within which duration do you plan to finish the task?

Alternatives:

within what duration
within which time frame
within which period
within which timeframe
within which time span

This phrase is used to inquire about the specific time frame within which something is expected to happen or be completed.

Examples:

Can you complete the project within what duration?
Within what duration should I expect a response?
Tell me within what duration you need the report.
Do you know within what duration the repairs will be finished?
Within what duration do you plan to finish the task?

Alternatives:

within which time frame
within what period
within what timeframe
within what time span
within what interval

Answer 1

within which duration

This phrase is correct but may sound slightly more formal or technical.

Answer 2

within what duration

This phrase is correct and commonly used in English.

"within which duration" vs "within what duration"

within which duration

within what duration

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