Translation guide
The concept of midday in Japanese is most commonly expressed with specific time words or descriptive phrases. The best choice depends on whether you are referring to a precise time (noon), a general time of day, or a period around the middle of the day.
Referring to exactly 12:00 PM, the middle of the day.
The standard word for 'noon' or 'midday' as a precise time. Used in formal and written contexts, such as schedules and news.
会議は正午から始まります。
The meeting starts at noon.
正午の時報が鳴った。
The noon time signal sounded.
Literally '12 o'clock in the daytime'. A clear, everyday way to specify noon, especially when distinguishing from midnight.
昼の12時にここで待ち合わせよう。
Let's meet here at noon.
Literally 'true daytime', often used poetically or to emphasize the brightness of midday. Not used for scheduling.
真昼の太陽が照りつける。
The midday sun beats down.
Referring to the period around the middle of the day, typically associated with lunch.
The most common word for 'noon' or 'midday' in daily conversation. Often implies lunchtime. Can be used in compounds like 昼休み (lunch break).
昼に何を食べましたか。
What did you eat for lunch?
昼過ぎにまた来ます。
I'll come again after midday.
Polite prefix お added to 昼. Very common in polite conversation and when referring to lunch.
Means 'around noon' or 'about midday'. Useful for approximate times.
Specifically refers to the lunchtime period, often used in contexts like restaurant peak hours.
Referring to the broad middle part of the day, not necessarily exactly noon.
Means 'during the day' or 'daytime', often contrasting with night. Covers the broad midday period.
日中はまだ暑いです。
It's still hot during the day.
Similar to 日中, meaning 'daytime' or 'during the day'. Very common in conversation.
Emphatic 'broad daylight', often used when something surprising happens in the middle of the day.
正午 is precise (12:00 PM) and formal, used in schedules and official contexts. 昼 is casual and often means lunchtime or the general midday period. In daily conversation, 昼 is much more common.
English 'midday' is often used loosely for the middle of the day. Direct translations like 真昼 or 正午 may sound too specific or poetic. Use 昼 or 日中 for general midday references.
Have you already eaten lunch?
It started raining around midday.
This restaurant gets very crowded at lunchtime.
昼間は家にいません。
I'm not home during the day.
真っ昼間からお酒を飲むの？
Drinking alcohol in the middle of the day?