kotlin.time — Duration and measureTime

import kotlin.time.Duration.Companion.seconds
import kotlin.time.Duration.Companion.milliseconds
import kotlin.time.Duration.Companion.minutes
import kotlin.time.measureTime
import kotlin.time.measureTimedValue

fun main() {
    // Construct durations from any number
    val timeout = 30.seconds
    val pulseInterval = 250.milliseconds
    val sessionMax = 30.minutes
    println("$timeout, $pulseInterval, $sessionMax")

    // Arithmetic
    val total = 5.minutes + 30.seconds
    println(total.inWholeSeconds)                        // 330
    println(total.inWholeMilliseconds)                   // 330000

    // Benchmark a block
    val took = measureTime {
        Thread.sleep(150)
    }
    println("took $took")                                 // took 150.123ms

    // Measure + capture result in one shot
    val (result, elapsed) = measureTimedValue {
        (1L..1_000_000L).sum()
    }
    println("$result in $elapsed")
}