It is the unit of time measurement adopted worldwide by the International System of Units (SI) to standardize the physical greatness of time. It is defined as "the duration of 9 192 631 770 periods of radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom.  ".
It is represented by the letter" s ", it was defined by SI to represent the unit" second ".
It is a unit of time standardized by the International System of Units, uses the symbol "min" and corresponds to 60 seconds.
On the UTC (Coordinated Universal Time) time scale, in rare instances, a minute can be 59 or 61 seconds, when leap seconds are entered.
The hour is a unit of measurement of time that uses the speed of rotation and the dimensions of the Earth to calculate its measurements.
An hour is equivalent to 60 minutes or 3,600 seconds. This is the same as saying that one hour is the same as 1/24 (one twenty-fourth) of an Earth day.
Although not defined by the International System of Units (SI), he accepts that the unit is represented by the symbol "h". The concept of time Retrieved on August 17, 2021.