Minute (min)
Definition: A minute (symbol: min) is a unit of time based on the second, the base unit of the International System of Units (SI). It is equal to 60 seconds.
History/origin: The term "minute" is derived from the Latin "pars minuta prima" which means the "first small part." The minute was originally defined as 1/60 of an hour (60 seconds).
Current use: The minute is used for all manner of measurements of duration, from timing races, measuring cooking or baking times, to any number of other applications.
Hour (h)
Definition: An hour (symbol: h) is a unit of time conventionally defined as 1/24 of a day and 3,600 seconds.
History/origin: The term "hour" is derived from the Anglo-Norman "houre," which was in use around the 13th century. The custom of dividing the cycle of day and night into 24 periods began with the ancient Egyptians.
Current use: The hour is used globally as a unit of time. Most forms of employment require a certain number of hours worked per day.