what fraction of one minute is 23 second(s)
Second The second (symbol: s) (abbreviated s or sec) is the base unit of time in the International System of Units (SI).[1][2] It is qualitatively defined as the second division of the hour by sixty, the first division by sixty being the minute.[3] The SI definition of second is "the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom".[1][4] Seconds may be measured using a mechanical, electrical or an atomic clock.