ἡμιώριον G2256
hēmiṓrion · hay-mee-o'-ree-on · Noun Neuter
from the base of ἥμισυ and ὥρα; a half-hour:--half an hour.
1 Occurrence in the King James Bible
Revelation 8:1And when he had opened the seventh seal, there was silence in heaven about the space of half an hour.