NanoClock

NanoClock.scala

import java.time.{Clock, Instant, ZoneId}

class NanoClock(private val clock: Clock) extends Clock {

  def this() { this(Clock.systemUTC) }

  private val initialInstant = clock.instant
  private val initialNanos = System.nanoTime

  override def getZone: ZoneId = clock.getZone

  override def instant: Instant = initialInstant.plusNanos(System.nanoTime - initialNanos)

  override def withZone(zone: ZoneId): Clock = new NanoClock(clock.withZone(zone))

}