1. Input your text below.
2. Get it corrected in a few minutes by our editors.
3. Improve your English!

One of our experts will correct your English.

Our experts

1. Input your text below.
2. Get it corrected in a few minutes by our editors.
3. Improve your English!

One of our experts will correct your English.

Our experts

"on day one" vs "in day one"

The correct phrase is 'on day one.' 'On day one' is the appropriate preposition to use when referring to a specific day in a sequence. 'In day one' is not a common or correct phrase in English.

Last Updated: March 30, 2024

on day one

This phrase is correct and commonly used in English.

Use 'on day one' when referring to a specific day in a sequence, such as the first day of an event or project.

Examples:

  • On day one of the conference, all attendees received a welcome package.
  • We need to finalize the budget on day one of the project.
  • On day one of the trip, we visited the famous landmarks in the city.
  • The new employee impressed everyone on day one of her job.
  • On day one of the competition, the team set a new record.

in day one

This phrase is not correct in English usage.

Related Comparisons

Why choose TextRanch?

Lowest prices
Up to 50% lower than other online editing sites.

Fastest Times
Our team of editors is working for you 24/7.

Qualified Editors
Native English experts for UK or US English.

Top Customer Service
We are here to help. Satisfaction guaranteed!