Can I get the time "Duration" in "nsecs" acurracy?

[rempas via Digitalmars-d-learn]

I'm reading the library reference for 
[core.time](https://dlang.org/phobos/core_time.html#Duration) and 
It says that the duration is taken in "hnsecs" and I cannot 
understand if we can change that and choose the precision. Does 
anyone know if we can do that?