Neatly show duration of a function execution in kotlin

Timer.kt

package com.emma.recursion

import java.time.LocalDateTime
import java.time.format.DateTimeFormatter
import java.time.temporal.ChronoUnit.*

/**
 * How to neatly show duration of a function execution in kotlin
 */
fun timer(f: () -> Unit) {
    val dateFormat = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")
    val startTime = LocalDateTime.now()
    val methodName = f.javaClass.enclosingMethod.name

    println("${startTime.format(dateFormat)} => start ($methodName)")

    f()

    val endTime = LocalDateTime.now()
    println(
        "${endTime.format(dateFormat)} => end ($methodName), duration: (${MINUTES.between(
            startTime,
            endTime
        )} minutes| ${SECONDS.between(startTime, endTime)} seconds | ${MILLIS.between(
            startTime,
            endTime
        )} millis | ${NANOS.between(startTime, endTime)} nanos)"
    )
}

fun printText(text: String) {
    println(text)
}

fun main() {
    timer {
        printText("telewa")
    }
    timer {
        printText("emmanuel")
    }
}