Not really.
The second is one of the SI system's seven BASE (not 'basic') units.
The SI unit of duration is the second (s).
The SI unit of time is the "second".
A second is a SI base unit.
The SI unit for time is the second.
The SI unit of time is the second (s), which is defined based on the vibrational frequency of the cesium atom in atomic clocks. It is used as the base unit for measuring time intervals in various scientific and everyday applications.
The SI unit for distance is the meter (m), and the SI unit for time is the second (s).
The unit of velocity in the SI unit system is meters per second (m/s).
s of course it is unit in SI system.........according to it..........
The base SI unit of time is the second (s).
The SI unit is the second.
The SI unit for speed is meters per second.
The second