0 twelve o'clock in the middle of the day, or about that time:
1 12 o’clock in the middle of the day; midday:
My first class is at noon.
Hotel guests are requested to vacate their rooms by twelve noon.
There's a notice outside the building which says 'No admission before 12 noon'.
I finish work at noon on Saturday, so we could go for a coffee then.
The train gets in just before noon.
Although he starts work again at noon time, he has to return to the restaurant at about eleven in the morning and get everything prepared.
Shortly after noon, the batteries in the scanning machine failed and the registration process stopped.
All jirds were dissected between 9:00 a. m. and 12 noon to reduce effects of temporal differences in metabolism.
