'Half' in the Bible

When the Lamb broke the seventh seal, there was silence in Heaven for about half an hour.

And men belonging to all peoples, tribes, languages and nations gaze at their dead bodies for three days and a half, but they refuse to let them be laid in a tomb.

But at the end of the three days and a half the breath of life from God entered into them, and they rose to their feet; and all who saw them were terrified.

Then, the two wings of a great eagle were given to the woman to enable her to fly away into the Desert to the place assigned her, there to be cared for, for a period of time, two periods of time, and half a period of time, beyond the reach of the serpent.