正午

正午

Noon.

Here, 正午 is used to denote the specific time of day—noon—and serves as the temporal indicator for the action.

正午に食事をしようと思っています。

I am thinking of having a meal at noon.

In this instance, 正午 specifies the exact expected time of arrival of the train, providing precise temporal information.

電車は正午に到着します。

The train will arrive at noon.

Here, 正午 is used to mark the boundary of a time period, reflecting the point in time after which something occurred.

正午を過ぎて天気が悪くなった。

It became gloomy and the weather turned worse after noon.