high noon

keskipäivä puhekieltä Exactly noon; midday (when the sun is at its highest)

The same streets that are inviting and quiet at high noon may be intimidating at night.

(..) whereas, ten years since, there were thousands who could not endure my lightest word of rebuke to the South, they can now easily swollow John Brown whole, and his rifle into the bargain. In firing his gun, he has merely told us what time of day it is. It is high noon, thank God!