The SI unit for time is Seconds.
In the SI system, the unit for time is the second.
the same as the base unit OF time.
The SI unit of time is the second.
In international system the base unit of time is second.
I assume you mean the base unit. The international (SI) unit for time is the second.
A light-year is a unit of distance, not a unit of time.
The SI unit for time is seconds (s).
metric unit of time is called a second.
The SI unit for time is the second.
CGS unit of time is Second,s.
there is no real metric unit. The SI unit is the second
I assume you mean the base unit. The international (SI) unit for time is the second.