Last Updated：2025/11/20

The scheduled time for the start of some event, especially a military operation; H-hour.

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zero hour

Source Word

zero hour

Noun

The scheduled time for the start of some event, especially a military operation; H-hour.

Japanese Meaning

（特に軍事作戦などで）予定された開始時刻 / 作戦や出来事の開始が設定された時刻 / 決戦開始のタイミング

The platoon stood ready at zero hour, waiting for the signal to advance.

小隊は作戦開始予定時刻に備えて、前進の合図を待っていた。

Sense（1）

The scheduled time for the start of some event, especially a military operation; H-hour.

I waited with occasional glances at my watch until the zero hour should arrive.

zero hours

（ plural ）