Convert Instant to microseconds from Epoch time

Question

In Instant there are methods:

• toEpochMilli which converts this instant to the number of milliseconds from the epoch of 1970-01-01T00:00:00Z

Answer 1

As part of java.time, there are units under java.time.temporal.ChronoUnit that are useful for getting the difference between two points in time as a number in nearly any unit you please. e.g.

import java.time.Instant;
import java.time.temporal.ChronoUnit;

ChronoUnit.MICROS.between(Instant.EPOCH, Instant.now())

gives the microseconds since epoch for that Instant as a long.