Duration

Common
JVM
JS
Native
1.6
inline 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.

Properties

Common
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1.0

absoluteValue

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

val absoluteValue: Duration
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1.0

inDays

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

val inDays: Double
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1.0

inHours

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

val inHours: Double
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1.0

inMicroseconds

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

val inMicroseconds: Double
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1.0

inMilliseconds

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

val inMilliseconds: Double
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1.0

inMinutes

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

val inMinutes: Double
Common
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1.0

inNanoseconds

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

val inNanoseconds: Double
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1.0

inSeconds

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

val inSeconds: Double
Common
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1.0

inWholeDays

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

val inWholeDays: Long
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1.0

inWholeHours

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

val inWholeHours: Long
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1.0

inWholeMicroseconds

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

val inWholeMicroseconds: Long
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1.0

inWholeMilliseconds

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

val inWholeMilliseconds: Long
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1.0

inWholeMinutes

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

val inWholeMinutes: Long
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1.0

inWholeNanoseconds

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

val inWholeNanoseconds: Long
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1.0

inWholeSeconds

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

val inWholeSeconds: Long

Functions

Common
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1.0

compareTo

fun compareTo(other: Duration): Int
Common
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1.0

div

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

operator fun div(scale: Int): Duration
operator fun div(scale: Double): Duration

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

operator fun div(other: Duration): Double
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1.0

isFinite

Returns true, if the duration value is finite.

fun isFinite(): Boolean
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1.0

isInfinite

Returns true, if the duration value is infinite.

fun isInfinite(): Boolean
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1.0

isNegative

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

fun isNegative(): Boolean
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1.0

isPositive

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

fun isPositive(): Boolean
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1.0

minus

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

operator fun minus(other: Duration): Duration
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1.0

plus

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

operator fun plus(other: Duration): Duration
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1.0

times

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

operator fun times(scale: Int): Duration
operator fun times(scale: Double): Duration
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1.0

toComponents

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.

fun <T> toComponents(
    action: (days: Long, hours: Int, 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.

fun <T> toComponents(
    action: (hours: Long, minutes: Int, 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.

fun <T> toComponents(
    action: (minutes: Long, seconds: Int, 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.

fun <T> toComponents(
    action: (seconds: Long, nanoseconds: Int) -> T
): T
Common
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1.0

toDouble

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

fun toDouble(unit: DurationUnit): Double
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1.0

toInt

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

fun toInt(unit: DurationUnit): Int
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1.0

toIsoString

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

fun toIsoString(): String
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1.0

toLong

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

fun toLong(unit: DurationUnit): Long
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toLongMilliseconds

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

fun toLongMilliseconds(): Long
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1.0

toLongNanoseconds

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

fun toLongNanoseconds(): Long
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1.0

toString

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

fun toString(): 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.

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

Returns the negative of this value.

operator fun unaryMinus(): Duration

Companion Object Properties

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days

Returns a Duration equal to this Int number of days.

val Int.days: <ERROR CLASS>

Returns a Duration equal to this Long number of days.

val Long.days: <ERROR CLASS>

Returns a Duration equal to this Double number of days.

val Double.days: <ERROR CLASS>
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1.0

hours

Returns a Duration equal to this Int number of hours.

val Int.hours: <ERROR CLASS>

Returns a Duration equal to this Long number of hours.

val Long.hours: <ERROR CLASS>

Returns a Duration equal to this Double number of hours.

val Double.hours: <ERROR CLASS>
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1.0

INFINITE

The duration whose value is positive infinity. It is useful for representing timeouts that should never expire.

val INFINITE: Duration
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1.0

microseconds

Returns a Duration equal to this Int number of microseconds.

val Int.microseconds: <ERROR CLASS>

Returns a Duration equal to this Long number of microseconds.

val Long.microseconds: <ERROR CLASS>

Returns a Duration equal to this Double number of microseconds.

val Double.microseconds: <ERROR CLASS>
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1.0

milliseconds

Returns a Duration equal to this Int number of milliseconds.

val Int.milliseconds: <ERROR CLASS>

Returns a Duration equal to this Long number of milliseconds.

val Long.milliseconds: <ERROR CLASS>

Returns a Duration equal to this Double number of milliseconds.

val Double.milliseconds: <ERROR CLASS>
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minutes

Returns a Duration equal to this Int number of minutes.

val Int.minutes: <ERROR CLASS>

Returns a Duration equal to this Long number of minutes.

val Long.minutes: <ERROR CLASS>

Returns a Duration equal to this Double number of minutes.

val Double.minutes: <ERROR CLASS>
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nanoseconds

Returns a Duration equal to this Int number of nanoseconds.

val Int.nanoseconds: <ERROR CLASS>

Returns a Duration equal to this Long number of nanoseconds.

val Long.nanoseconds: <ERROR CLASS>

Returns a Duration equal to this Double number of nanoseconds.

val Double.nanoseconds: <ERROR CLASS>
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1.0

seconds

Returns a Duration equal to this Int number of seconds.

val Int.seconds: <ERROR CLASS>

Returns a Duration equal to this Long number of seconds.

val Long.seconds: <ERROR CLASS>

Returns a Duration equal to this Double number of seconds.

val Double.seconds: <ERROR CLASS>
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ZERO

The duration equal to exactly 0 seconds.

val ZERO: Duration

Companion Object Functions

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1.0

convert

Converts the given time duration value expressed in the specified sourceUnit into the specified targetUnit.

fun convert(
    value: Double,
    sourceUnit: DurationUnit,
    targetUnit: DurationUnit
): Double
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days

Returns a Duration representing the specified value number of days.

fun days(value: Int): Duration
fun days(value: Long): Duration
fun days(value: Double): Duration
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1.5

hours

Returns a Duration representing the specified value number of hours.

fun hours(value: Int): Duration
fun hours(value: Long): Duration
fun hours(value: Double): Duration
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microseconds

Returns a Duration representing the specified value number of microseconds.

fun microseconds(value: Int): Duration
fun microseconds(value: Long): Duration
fun microseconds(value: Double): Duration
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1.5

milliseconds

Returns a Duration representing the specified value number of milliseconds.

fun milliseconds(value: Int): Duration
fun milliseconds(value: Long): Duration
fun milliseconds(value: Double): Duration
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1.5

minutes

Returns a Duration representing the specified value number of minutes.

fun minutes(value: Int): Duration
fun minutes(value: Long): Duration
fun minutes(value: Double): Duration
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1.5

nanoseconds

Returns a Duration representing the specified value number of nanoseconds.

fun nanoseconds(value: Int): Duration
fun nanoseconds(value: Long): Duration
fun nanoseconds(value: Double): Duration
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parse

Parses a string that represents a duration and returns the parsed Duration value.

fun parse(value: String): Duration
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parseIsoString

Parses a string that represents a duration in ISO-8601 format and returns the parsed Duration value.

fun parseIsoString(value: String): Duration
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parseIsoStringOrNull

Parses a string that represents a duration in ISO-8601 format and returns the parsed Duration value, or null if the string doesn't represent a duration in ISO-8601 format.

fun parseIsoStringOrNull(value: String): Duration?
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parseOrNull

Parses a string that represents a duration and returns the parsed Duration value, or null if the string doesn't represent a duration in any of the supported formats.

fun parseOrNull(value: String): Duration?
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1.5

seconds

Returns a Duration representing the specified value number of seconds.

fun seconds(value: Int): Duration
fun seconds(value: Long): Duration
fun seconds(value: Double): Duration

Extension Functions

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1.0

coerceAtLeast

Ensures that this value is not less than the specified minimumValue.

fun <T : Comparable<T>> T.coerceAtLeast(minimumValue: T): T
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coerceAtMost

Ensures that this value is not greater than the specified maximumValue.

fun <T : Comparable<T>> T.coerceAtMost(maximumValue: T): T
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coerceIn

Ensures that this value lies in the specified range minimumValue..maximumValue.

fun <T : Comparable<T>> T.coerceIn(
    minimumValue: T?,
    maximumValue: T?
): T

Ensures that this value lies in the specified range.

fun <T : Comparable<T>> T.coerceIn(
    range: ClosedFloatingPointRange<T>
): T
fun <T : Comparable<T>> T.coerceIn(range: ClosedRange<T>): T
Common
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1.6

compareTo

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.

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

Creates a range from this Comparable value to the specified that value.

operator fun <T : Comparable<T>> T.rangeTo(
    that: T
): ClosedRange<T>
JVM
JRE8
1.6

toJavaDuration

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

fun Duration.toJavaDuration(): Duration