Of or in accordance with the clock: three o'clock.
based on an imaginary clock switch because of the observer within center and 12 o'clock regarded as straight ahead in horizontal place or directly in straight position. Familiar with indicate general position: adversary planes at 10 o'clock.
along with a numeral, shows enough time within a twelve hour period (midnight to noon or noon to midnight), especially the full time when the time hand of a-clock points precisely to your representation or marking matching into designated numeral.
together with a phrase representing an action or event occurring daily, suggests the time having said that activity or occasion happens, or very first occurs.
In conjunction with a numeral, suggests the course, in accordance with the presenter, matching on way the hour hand is pointing at the time corresponding toward numeral, with twelve representing directly ahead and three being to the right.
regularly indicate direction on an airplane, usually straight with 12 o'clock becoming upright, representing a projection associated with the speaker’s industry of sight.