Translation guide
In Japanese, 'twelve o'clock' is most commonly expressed as 12時 (じゅうにじ) for noon or midnight. Context determines whether it means noon or midnight, but specific terms like 正午 (しょうご) for noon and 午前0時 (ごぜんれいじ) for midnight are used for clarity.
Expressing the time 12:00 on a clock, without specifying AM/PM.
The standard way to say 'twelve o'clock'. Use this when the context (AM/PM) is clear or when stating the time in a schedule.
会議は12時からです。
The meeting is from twelve o'clock.
Emphasizes 'exactly twelve o'clock'. Useful for precision.
12時ちょうどに着きます。
I'll arrive at exactly twelve o'clock.
Specifically referring to midday, 12:00 PM.
The formal and precise term for noon. Used in schedules, announcements, and written contexts.
正午に昼食をとります。
I have lunch at noon.
Literally 'twelve o'clock of daytime'. Common in casual speech to clarify noon.
昼の12時に集合しよう。
Let's meet at noon.
Literally '0 o'clock PM'. Used in some official contexts like train schedules, but less common in daily speech.
午後0時発の電車です。
It's the train departing at 12:00 PM.
Specifically referring to the start of a new day, 12:00 AM.
The standard term for midnight. Used in schedules, official documents, and when precision is needed.
午前0時を過ぎると日付が変わります。
The date changes after midnight.
Literally 'twelve o'clock at night'. Common in casual conversation.
夜の12時まで起きてた。
I stayed up until midnight.
Short for midnight, often used in 24-hour time systems like train schedules.
終電は0時5分です。
The last train is at 12:05 AM.
A rare, formal term for midnight, similar to 'midnight' in English. Not used in daily conversation.
Both mean noon, but 正午 is the everyday term, while 午後0時 is used in formal schedules like transportation timetables. In speech, 正午 is preferred.
正午に会いましょう。
Let's meet at noon.
午後0時発
Departs at 12:00 PM
Saying just 12時 for midnight can be ambiguous. Use 午前0時 or 夜の12時 to be clear, especially in scheduling.
The midnight bell rings.