1.
noon, midday, 12:00 PM
Exactly twelve o'clock in the middle of the day.
正午のニュースを見た。
I watched the noon news.
会議は正午に始まる。
The meeting starts at noon.
正午を過ぎたら、午後になる。
Once it passes noon, it becomes afternoon.
正午になったら、お昼ごはんを食べよう。
Let's eat lunch when it's noon.
飛行機は正午ちょうどに出発する予定だったが、天気が悪くて遅れた。
The plane was scheduled to depart at exactly noon, but it was delayed due to bad weather.
正午 means exactly 12:00 PM (noon). More precise and formal than 昼, which loosely refers to midday or daytime.
SIMILAR WORDS:
- 正午: exactly 12:00 PM (precise, formal)
- 昼: noon/daytime/midday (casual, approximate)
- お昼: polite form; often means "lunch" or "lunchtime"
- 真昼: broad daylight, the middle of the day
COMMON EXPRESSIONS:
- 正午ちょうど: exactly at noon
- 正午過ぎ: past noon, shortly after 12:00
- 正午前: before noon
- 正午のニュース: the noon news
USAGE:
Used in schedules, announcements, and news. In everyday conversation, 昼 or お昼 is more natural: お昼に会おう (let's meet at noon) rather than 正午に会おう.