zero hour

US /ˈzɪroʊ ˈaʊər/
UK /ˈzɪroʊ ˈaʊər/
"zero hour" picture
1.

jam nol, waktu mulai

the time at which a planned operation or event is scheduled to begin

:
The troops were ready for zero hour, awaiting the command to advance.
Pasukan siap untuk jam nol, menunggu perintah untuk maju.
The launch countdown began, signaling that zero hour was approaching.
Hitungan mundur peluncuran dimulai, menandakan bahwa jam nol semakin dekat.