How to Say “Have a Great Day” in Japanese

良い一日を
yoi ichinichi o
To say "have a great day" in Japanese, you use 良い一日を (yoi ichinichi o).
良い一日を is a friendly parting phrase used to wish someone a positive experience for the remainder of their day. It is typically used when parting ways with someone during the morning or early afternoon, rather than at the end of a workday.

What does it mean word for word?

The phrase is a fragment that literally translates to "good day (object marker)". It consists of yoi (good), ichinichi (one day/the whole day) and the particle o (object marker), which implies a verb like "have" or "spend" that is left unsaid.

How does it change in a sentence?

The phrase 良い一日を is a shortened, conversational version of the more complete and polite form 良い一日を過ごしてください, which means "please spend a good day".

How do you pronounce it?

yoi ichinichi o

Did you know?

  • While 良い一日を is common in textbooks, Japanese people rarely say it to each other in daily life, as wishing for a 'good day' is traditionally a Western custom.
  • In a professional setting, a Japanese person is more likely to say お疲れ様です ('you are tired/worked hard') than to wish someone a 'great day' when parting.
  • The word 一日 ('one day') can be read as 'ichinichi' to mean a duration of time or 'tsuitachi' to mean the first day of the month.

Examples in context

  • それでは、良い一日を。
    Sore dewa, yoi ichinichi o.
    Well then, have a great day.
  • 今日も良い一日を!
    Kyou mo yoi ichinichi o!
    Have a great day today too!
  • 皆さんも、良い一日を。
    Minasan mo, yoi ichinichi o.
    Have a great day, everyone.

Example conversation

Kenta and Himari are saying goodbye after breakfast.

  1. 健太 Kenta

    もう行くね。良い一日を!
    Mou iku ne. Yoi ichinichi o!
    I'm leaving now. Have a great day!
  2. 陽葵 Himari

    ありがとう。健太さんも良い一日を。
    Arigato. Kenta-san mo yoi ichinichi o.
    Thanks. You have a great day too, Kenta.
  3. 健太 Kenta

    また後でね。
    Mata ato de ne.
    See you later.
  4. 陽葵 Himari

    うん、またね!
    Un, mata ne!
    Yeah, see you!
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Lynn Cynthia
Lynn CynthiaHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.
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