ブラウザの設定でJava Scriptの使用を有効にしてご利用ください。
出典:Wiktionary
twelve o'clock (usually uncountable, 複数形 twelve o'clocks)
The concepts of twelve o'clock high and high noon have similar-sounding names but differ in meaning and in derivation. The first means "straight ahead and above" and the second means "exactly noon, when the sun is higher in the sky than at any other moment of the day".
twelve o'clock