Timewise vs Time Wise: Which Spelling Is Correct?

Short answer: Use timewise (one word) when you mean “in terms of time” or “when it comes to time.” Use time wise (two words) only when “wise” is a separate word meaning “smart” or “sensible,” which is rare.

People mix these up because the one-word form is made from two common words stuck together. The difference is small, but it changes the meaning of your sentence.

What “timewise” means

Timewise is an adverb. It means “with regard to time” or “as far as time is concerned.” The ending -wise is a suffix, which is a word part added to the end of another word. In this sense, -wise means “in relation to.”

• Timewise, the new route is faster.
• We are fine budget-wise, but timewise we are behind.
• Timewise, Friday works better for me than Monday.

You can test it by swapping in “in terms of time.” If the sentence still makes sense, one word is correct.

• In terms of time, the new route is faster. ✓ → Timewise, the new route is faster.

When “time wise” is two words

Two words are correct only when wise keeps its own meaning of “having good judgment.” This is uncommon, because most people say “wise use of time” or “a wise choice” instead.

• It was a time wise teachers had learned to respect. (Here “time” is a noun, and “wise” describes the teachers.)
• She is a wise manager with her time. (More natural than “time wise.”)

If you cannot replace the phrase with “wise” meaning “smart,” you almost certainly want the one-word form.

Is “time-wise” with a hyphen correct?

You will see time-wise in some writing, and some writers prefer it. Dictionaries list the one-word form timewise, so that is the safest choice. Pick one style and use it consistently if your publication has its own style guide.

Is “timewise” formal or informal?

Timewise is common in speech and everyday writing. Words ending in -wise that mean “regarding” (like moneywise or weatherwise) are often seen as casual or business-style. Some editors and style guides prefer you avoid them in formal or academic writing.

In a formal document, you can use a plainer phrase:

Casual	Formal alternative
Timewise, this plan is better.	In terms of time, this plan is better.
We are short timewise.	We are short on time.
Timewise, it makes sense.	It makes sense given the schedule.

Common mistakes

Writing “time wise” for the adverb.

Wrong: Time wise, we can finish by noon.

Right: Timewise, we can finish by noon.

Using “timewise” as an adjective.

It works as an adverb, so it sits at the start of a sentence or modifies a statement. A phrase like “a timewise schedule” is not standard. Write “a time-saving schedule” or “a well-planned schedule.”

Using it too often.

One or two uses in a piece read fine. A text full of timewise, budgetwise, and spacewise sounds clumsy. Rewrite some of them with “in terms of” or “for.”

Quick rule

• Means “regarding time”? Write timewise.
• Means “smart” about something? Write wise as a separate word, often “wise with time” or “a wise use of time.”

FAQs

Is “timewise” in the dictionary?

Yes. Major dictionaries list it as an adverb meaning “with regard to time.”

Can I use “timewise” in an essay or report?

You can, but a formal piece reads better with “in terms of time” or “regarding time.”

Are “moneywise” and “weatherwise” correct too?

Yes, they follow the same pattern: one word, adverb, casual in tone.

Takeaway

Write timewise as one word when you mean “as far as time is concerned.” Save time wise for the rare case where “wise” means “smart” on its own. For formal writing, “in terms of time” is the safer phrase.

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