An absolute point in time, more efficient and precise than the float
-based [root:Time],
but representing a narrower range of times.
This module represents absolute times with nanosecond precision, approximately between the years 1823 and 2116 CE.
int
s are always immediate and so play nicely with the GC write barrier.
Unfortunately, private int
is necessary for the compiler to optimize uses.
Will raise on 32-bit platforms. Consider to_int63_ns_since_epoch
instead.