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How to Say ‘One day; a day’ in Japanese

一日

itsu nichi

[ee-chee nee-chee]

💬 Usage Tip: [一日] can mean “one day” or “a whole day,” depending on context. In [いい一日], it means “a good day.”

🇯🇵 In Japan: Japanese often combines this word with wishes, like hoping someone has a nice day or that the day goes smoothly.

Phrase Breakdown

itsu

[ee-chee]

one

The number one. Here it is part of the word for one day.

Example

一日が始まります。

One day begins.

nichi

[nee-chee]

day

This kanji means day or sun. Here it is read as part of ichinichi.

Example

一日が長いです。

The day is long.

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