noon -
The corresponding time in the middle of the night; midnight.
Wikipedia
Noon (also mid-day or noon time) is defined as 12 o'clock in the daytime. The word noon is also used informally to mean midday, a time generally around the middle of the day when people in many countries take a lunch break. The scientific term solar noon describes the moment when the sun crosses the meridian in apparent solar time, the time when the sun is at its highest elevation in the sky.