Some users uncovered the truth: the “O” stands for “of” in “of the clock.” So, when we say “9 o’clock,” it’s actually short for “9 of the clock.” Back when clocks were ...

O'clock is a way of telling the exact hour on a clock. We say "o'clock" when the minute hand (the long hand) points to the number 12 on the clock. When the minute hand points straight up to 12 ...

The Doomsday Clock, a symbolic measure of humanity's proximity to catastrophic destruction, has been set at 89 seconds to ...