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Time can be defined in two ways. One is a measure of the amount of time between two events, or the beginning and ending amount of time for something to happen. The second measure is the precise moment that shows on a clock.

There are different kinds of clocks. A digital clock tells time in numerals. An analog clock has a face and shows the numbers 1 to 12, with an hour and a minute hand. Analog clocks are divided into four fifteen minute sections by the numbers 12, 3, 6, and 9.

  • The 12 is the o'clock hour.
  • The 3 is 15 minutes after, or a quarter past the last hour.
  • The 6 is 30 minutes after, or half past the hour.
  • The 9 is 45 minutes after, or a quarter to the next hour.

Time can be measured in several units. Look at the time table below to see the different ways time can be measured.

One more thing to keep in mind about the time of a day is that it is called a.m. and p.m.

  • A.M. equals the hours from 12 o'clock midnight to 12 o'clock noon.
  • P.M. equals the hours from 12 o'clock noon to 12 o'clock midnight.

Table of Time Conversions