Duration

value class Duration : Comparable<Duration> (source)

Represents the amount of time one instant of time is away from another instant.

A negative duration is possible in a situation when the second instant is earlier than the first one.

The type can store duration values up to ±146 years with nanosecond precision, and up to ±146 million years with millisecond precision. If a duration-returning operation provided in kotlin.time produces a duration value that doesn't fit into the above range, the returned Duration is infinite.

An infinite duration value Duration.INFINITE can be used to represent infinite timeouts.

To construct a duration use either the extension function toDuration, or the extension properties hours, minutes, seconds, and so on, available on Int, Long, and Double numeric types.

To get the value of this duration expressed in a particular duration units use the functions toInt, toLong, and toDouble or the properties inWholeHours, inWholeMinutes, inWholeSeconds, inWholeNanoseconds, and so on.

Since Kotlin

1.6

Types

Companion

object Companion

Since Kotlin 1.6

Properties

absoluteValue

val absoluteValue: Duration

Returns the absolute value of this value. The returned value is always non-negative.

Since Kotlin 1.6

inWholeDays

val inWholeDays: Long

The value of this duration expressed as a Long number of days.

Since Kotlin 1.6

inWholeHours

val inWholeHours: Long

The value of this duration expressed as a Long number of hours.

Since Kotlin 1.6

inWholeMicroseconds

val inWholeMicroseconds: Long

The value of this duration expressed as a Long number of microseconds.

Since Kotlin 1.6

inWholeMilliseconds

val inWholeMilliseconds: Long

The value of this duration expressed as a Long number of milliseconds.

Since Kotlin 1.6

inWholeMinutes

val inWholeMinutes: Long

The value of this duration expressed as a Long number of minutes.

Since Kotlin 1.6

inWholeNanoseconds

val inWholeNanoseconds: Long

The value of this duration expressed as a Long number of nanoseconds.

Since Kotlin 1.6

inWholeSeconds

val inWholeSeconds: Long

The value of this duration expressed as a Long number of seconds.

Since Kotlin 1.6

Functions

compareTo

open operator override fun compareTo(other: Duration): Int

Compares this object with the specified object for order. Returns zero if this object is equal to the specified other object, a negative number if it's less than other, or a positive number if it's greater than other.

Since Kotlin 1.6

compareTo

infix inline fun <T> Comparable<T>.compareTo(other: T): Int

Since Kotlin 1.6

div

operator fun div(scale: Double): Duration

operator fun div(scale: Int): Duration

Returns a duration whose value is this duration value divided by the given scale number.

Since Kotlin 1.6

operator fun div(other: Duration): Double

Returns a number that is the ratio of this and other duration values.

Since Kotlin 1.6

isFinite

fun isFinite(): Boolean

Returns true, if the duration value is finite.

Since Kotlin 1.6

isInfinite

fun isInfinite(): Boolean

Returns true, if the duration value is infinite.

Since Kotlin 1.6

isNegative

fun isNegative(): Boolean

Returns true, if the duration value is less than zero.

Since Kotlin 1.6

isPositive

fun isPositive(): Boolean

Returns true, if the duration value is greater than zero.

Since Kotlin 1.6

minus

operator fun minus(other: Duration): Duration

Returns a duration whose value is the difference between this and other duration values.

Since Kotlin 1.6

plus

operator fun plus(other: Duration): Duration

Returns a duration whose value is the sum of this and other duration values.

Since Kotlin 1.6

times

operator fun times(scale: Double): Duration

operator fun times(scale: Int): Duration

Returns a duration whose value is this duration value multiplied by the given scale number.

Since Kotlin 1.6

toComponents

inline fun <T> toComponents(action: (seconds: Long, nanoseconds: Int) -> T): T

Splits this duration into seconds, and nanoseconds and executes the given action with these components. The result of action is returned as the result of this function.

Since Kotlin 1.6

inline fun <T> toComponents(action: (minutes: Long, seconds: Int, nanoseconds: Int) -> T): T

Splits this duration into minutes, seconds, and nanoseconds and executes the given action with these components. The result of action is returned as the result of this function.

Since Kotlin 1.6

inline fun <T> toComponents(action: (hours: Long, minutes: Int, seconds: Int, nanoseconds: Int) -> T): T

Splits this duration into hours, minutes, seconds, and nanoseconds and executes the given action with these components. The result of action is returned as the result of this function.

Since Kotlin 1.6

inline fun <T> toComponents(action: (days: Long, hours: Int, minutes: Int, seconds: Int, nanoseconds: Int) -> T): T

Splits this duration into days, hours, minutes, seconds, and nanoseconds and executes the given action with these components. The result of action is returned as the result of this function.

Since Kotlin 1.6

toDouble

fun toDouble(unit: DurationUnit): Double

Returns the value of this duration expressed as a Double number of the specified unit.

Since Kotlin 1.6

toInt

fun toInt(unit: DurationUnit): Int

Returns the value of this duration expressed as an Int number of the specified unit.

Since Kotlin 1.6

toIsoString

fun toIsoString(): String

Returns an ISO-8601 based string representation of this duration.

Since Kotlin 1.6

toJavaDuration

inline fun Duration.toJavaDuration(): Duration

Converts kotlin.time.Duration value to java.time.Duration value.

Since Kotlin 1.6

toLong

fun toLong(unit: DurationUnit): Long

Returns the value of this duration expressed as a Long number of the specified unit.

Since Kotlin 1.6

toString

open override fun toString(): String

Returns a string representation of this duration value expressed as a combination of numeric components, each in its own unit.

Since Kotlin 1.6

fun toString(unit: DurationUnit, decimals: Int = 0): String

Returns a string representation of this duration value expressed in the given unit and formatted with the specified decimals number of digits after decimal point.

Since Kotlin 1.6

unaryMinus

operator fun unaryMinus(): Duration

Returns the negative of this value.

Since Kotlin 1.6

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