H-hour

Etymology
The H stands for ; compare.

Noun

 * 1)  The hour at which any major event planned for the future is set to begin, as used in United States military.

Translations

 * Dutch: uur U
 * Finnish:
 * French:
 * Hebrew:
 * Indonesian: Jam-J
 * Norwegian:
 * Bokmål: klokken H
 * Portuguese: hora H
 * Vietnamese: