How to Say “Happy Monday” in Japanese

良い月曜日を
yoi getsuyōbi o
happy monday in Japanese is 良い月曜日を (yoi getsuyōbi o).
The phrase is used to wish someone a pleasant start to their week on a Monday. Unlike English speakers who might use 'Happy Monday' as a casual greeting when meeting someone, in Japanese, this phrase is more commonly used as a parting wish, such as at the end of an email or a conversation.

What does it mean word for word?

The phrase is composed of yoi (good), getsuyōbi (Monday) and the particle o (object marker).

How does it change in a sentence?

The phrase ends with the particle o, which implies an omitted verb like 'have' or 'spend', making it a polite way to offer a wish.

How do you pronounce it?

yoi getsuyōbi o

Did you know?

  • The word for Monday getsuyōbi literally means 'moon day'. This follows a pattern where the first five days of the week are named after the sun, moon and elements.
  • In a professional setting, rather than wishing someone a 'good Monday', it is much more common to use standard business greetings like お疲れ様です (otsukaresama desu) regardless of the day.
  • The character for moon 月 in 月曜日 does double duty in Japanese. Beyond naming Monday, it is the primary counter used to count months.

Examples in context

  • 皆、良い月曜日を。
    Minna, yoi getsuyōbi o.
    Have a happy Monday, everyone.
  • 良い月曜日を過ごしてね。
    Yoi getsuyōbi o sugoshite ne.
    Have a good Monday.

Example conversation

Two colleagues are saying goodbye at the office entrance on Monday morning.

  1. 陽葵 Himari

    健太さん、おはようございます。
    Kenta-san, ohayō gozaimasu.
    Good morning, Kenta.
  2. 健太 Kenta

    おはよう、陽葵さん。
    Ohayō, Himari-san.
    Morning, Himari.
  3. 陽葵 Himari

    今日も頑張りましょう。良い月曜日を!
    Kyō mo ganbarimashō. Yoi getsuyōbi o!
    Let's do our best today. Happy Monday!
  4. 健太 Kenta

    ありがとうございます。陽葵さんもね!
    Arigatō gozaimasu. Himari-san mo ne!
    Thank you. You too, Himari!
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Mildred Dorothy
Mildred DorothyHelp 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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