What does it mean word for word?
The phrase 良い一日を breaks down into yoi meaning 'good', ichinichi meaning 'one day' or 'the whole day' and o which is the object marker.
Which one should you use?
While 良い一日を is a common way to express this sentiment, you may also encounter いい一日を for a more casual tone or the more sincere and warm expression 良い日になりますように. For very formal situations, the complete phrase 良い一日をお過ごしください is used.
Is there a formal and an informal way to say it?
良い一日を is a shortened, slightly casual way to express a wish that is suitable for friends or acquaintances. For a more formal or polite version, use 良い一日をお過ごしください. Additionally, the expression ごきげんよう can be used to mean "I wish you a good day" or "Have a good day".
How does it change in a sentence?
The phrase 良い一日を ends with the particle o, which implies an omitted verb such as 'have' or 'spend'.
How do you pronounce it?
yoi ichinichi o
Did you know?
- The phrase 良い一日を is actually a loan translation from Western languages. Traditionally, Japanese people did not wish others a 'good day' as a goodbye, but instead used phrases like お疲れ様 to acknowledge the other person's hard work.
- In Japanese, the word 一日 can be read as both ichinichi and tsuitachi. While ichinichi refers to a duration of one day, tsuitachi refers specifically to the first day of the month.
- While 良い一日を is used in textbooks, saying it to a superior in a traditional Japanese company can feel unnatural. In such hierarchies, subordinates typically use お先に失礼します meaning 'Excuse me for leaving first'.
Examples in context
- ご機嫌いかがですか。今日も素晴らしい一日をお過ごしください！How are you today? I hope you have a wonderful day!
- いい一日を！お天気がいいから、楽しんでね！Have a good day! The weather is nice, so enjoy yourself!
- 良い日になりますように！お仕事頑張ってくださいね！I hope you have a great day! Good luck with your work!
- 良い一日を。Yoi ichinichi o.I hope you have a great day.
- それでは、良い一日を！Sore de wa, yoi ichinichi o!Well then, have a great day!
- 結衣さん、良い一日を。Yui-san, yoi ichinichi o.Have a great day, Yui.
Example conversation
Yota and Yui are parting ways after a morning meeting.
- 陽太 Yota今日はありがとう。良い一日を！Kyou wa arigatou. Yoi ichinichi o!Thanks for today. Have a great day!
- 結衣 Yuiこちらこそ。陽太さんも良い一日を！Kochira koso. Youta-san mo yoi ichinichi o!Likewise. I hope you have a great day too, Yota!
- 陽太 Yotaありがとう。じゃあね。Arigatou. Jaa ne.Thanks. See ya.
- 結衣 Yuiバイバイ！Baibai!Bye-bye!
