Scala Standard Library 2.13.16 - scala.concurrent.duration.Duration
Keywords: Scala Standard Library 2.13.16 scala.concurrent.duration.Duration

Scala Standard Library2.13.16 < Back


# Packages

-  package root

  This is the documentation for the Scala standard library.

  This is the documentation for the Scala standard library.

  #### Package structure

  The scala package contains core types like `Int`, `Float`, `Array` or `Option` which are accessible in all Scala compilation units without explicit qualification or imports.

  Notable packages include:

  - `scala.collection` and its sub-packages contain Scala's collections framework
    - `scala.collection.immutable` - Immutable, sequential data-structures such as `Vector`, `List`, `Range`, `HashMap` or `HashSet`
    - `scala.collection.mutable` - Mutable, sequential data-structures such as `ArrayBuffer`, `StringBuilder`, `HashMap` or `HashSet`
    - `scala.collection.concurrent` - Mutable, concurrent data-structures such as `TrieMap`
  - `scala.concurrent` - Primitives for concurrent programming such as `Futures` and `Promises`
  - `scala.io` - Input and output operations
  - `scala.math` - Basic math functions and additional numeric types like `BigInt` and `BigDecimal`
  - `scala.sys` - Interaction with other processes and the operating system
  - `scala.util.matching` - Regular expressions

  Other packages exist. See the complete list on the right.

  Additional parts of the standard library are shipped as separate libraries. These include:

  - `scala.reflect` - Scala's reflection API (scala-reflect.jar)
  - `scala.xml` - XML parsing, manipulation, and serialization (scala-xml.jar)
  - `scala.collection.parallel` - Parallel collections (scala-parallel-collections.jar)
  - `scala.util.parsing` - Parser combinators (scala-parser-combinators.jar)
  - `scala.swing` - A convenient wrapper around Java's GUI framework called Swing (scala-swing.jar)

  #### Automatic imports

  Identifiers in the scala package and the `scala.Predef` object are always in scope by default.

  Some of these identifiers are type aliases provided as shortcuts to commonly used classes. For example, `List` is an alias for `scala.collection.immutable.List`.

  Other aliases refer to classes provided by the underlying platform. For example, on the JVM, `String` is an alias for `java.lang.String`.

  Definition Classes
    root
-  package scala

  Core Scala types.

  Core Scala types. They are always available without an explicit import.

  Definition Classes
    root
-  package concurrent

  This package object contains primitives for concurrent and parallel programming.

  This package object contains primitives for concurrent and parallel programming.

  #### Guide

  A more detailed guide to Futures and Promises, including discussion and examples can be found at https://docs.scala-lang.org/overviews/core/futures.html.

  #### Common Imports

  When working with Futures, you will often find that importing the whole concurrent package is convenient:

      import scala.concurrent._

  When using things like `Future`s, it is often required to have an implicit `ExecutionContext` in scope. The general advice for these implicits are as follows.

  If the code in question is a class or method definition, and no `ExecutionContext` is available, request one from the caller by adding an implicit parameter list:

      def myMethod(myParam: MyType)(implicit ec: ExecutionContext) = …
      //Or
      class MyClass(myParam: MyType)(implicit ec: ExecutionContext) { … }

  This allows the caller of the method, or creator of the instance of the class, to decide which `ExecutionContext` should be used.

  For typical REPL usage and experimentation, importing the global `ExecutionContext` is often desired.

      import scala.concurrent.ExcutionContext.Implicits.global

  #### Specifying Durations

  Operations often require a duration to be specified. A duration DSL is available to make defining these easier:

      import scala.concurrent.duration._
      val d: Duration = 10.seconds

  #### Using Futures For Non-blocking Computation

  Basic use of futures is easy with the factory method on Future, which executes a provided function asynchronously, handing you back a future result of that function without blocking the current thread. In order to create the Future you will need either an implicit or explicit ExecutionContext to be provided:

      import scala.concurrent._
      import ExecutionContext.Implicits.global  // implicit execution context

      val firstZebra: Future[Int] = Future {
        val words = Files.readAllLines("/etc/dictionaries-common/words").asScala
        words.indexOfSlice("zebra")
      }

  #### Avoid Blocking

  Although blocking is possible in order to await results (with a mandatory timeout duration):

      import scala.concurrent.duration._
      Await.result(firstZebra, 10.seconds)

  and although this is sometimes necessary to do, in particular for testing purposes, blocking in general is discouraged when working with Futures and concurrency in order to avoid potential deadlocks and improve performance. Instead, use callbacks or combinators to remain in the future domain:

      val animalRange: Future[Int] = for {
        aardvark <- firstAardvark
        zebra <- firstZebra
      } yield zebra - aardvark

      animalRange.onSuccess {
        case x if x > 500000 => println("It's a long way from Aardvark to Zebra")
      }

  Definition Classes
    scala
-  package duration
  Definition Classes
    concurrent
- Deadline
- DoubleMult
- Duration
- DurationConversions
- DurationDouble
- DurationInt
- DurationLong
- FiniteDuration
- IntMult
- LongMult
- fromNow
- span

c

scala.concurrent.duration

# Duration

###
Companion object Duration

#### sealed abstract class Duration extends Serializable with Ordered[Duration]

#### Utility for working with java.util.concurrent.TimeUnit durations.

This class is not meant as a general purpose representation of time, it is optimized for the needs of `scala.concurrent`.

#### Basic Usage

Examples:

    import scala.concurrent.duration._

    val duration = Duration(100, MILLISECONDS)
    val duration = Duration(100, "millis")

    duration.toNanos
    duration < 1.second
    duration <= Duration.Inf

Invoking inexpressible conversions (like calling `toSeconds` on an infinite duration) will throw an IllegalArgumentException.

Implicits are also provided for Int, Long and Double. Example usage:

    import scala.concurrent.duration._

    val duration = 100.millis

The DSL provided by the implicit conversions always allows construction of finite durations, even for infinite Double inputs; use Duration.Inf instead.

Extractors, parsing and arithmetic are also included:

    val d = Duration("1.2 µs")
    val Duration(length, unit) = 5 millis
    val d2 = d * 2.5
    val d3 = d2 + 1.millisecond

#### Handling of Time Units

Calculations performed on finite durations always retain the more precise unit of either operand, no matter whether a coarser unit would be able to exactly express the same duration. This means that Duration can be used as a lossless container for a (length, unit) pair if it is constructed using the corresponding methods and no arithmetic is performed on it; adding/subtracting durations should in that case be done with care.

#### Correspondence to Double Semantics

The semantics of arithmetic operations on Duration are two-fold:

- exact addition/subtraction with nanosecond resolution for finite durations, independent of the summands' magnitude
- isomorphic to `java.lang.Double` when it comes to infinite or undefined values

The conversion between Duration and Double is done using Duration.toUnit (with unit NANOSECONDS) and Duration.fromNanos(Double)

#### Ordering

The default ordering is consistent with the ordering of Double numbers, which means that Undefined is considered greater than all other durations, including Duration.Inf.

Source
  Duration.scala

Linear Supertypes
math.Ordered[Duration], Comparable[Duration], java.io.Serializable, AnyRef, Any
Known Subclasses
Infinite, FiniteDuration
Type Hierarchy

Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. Duration
2. Ordered
3. Comparable
4. Serializable
5. AnyRef
6. Any

Implicitly

1. by orderingToOrdered
2. by durationToPair
3. by any2stringadd
4. by StringFormat
5. by Ensuring
6. by ArrowAssoc

1. Hide All
2. Show All

Visibility

1. Public
2. Protected

### Abstract Value Members

1.  abstract def *(factor: Double): Duration

   Return this duration multiplied by the scalar factor.

   Return this duration multiplied by the scalar factor. When involving non-finite factors the semantics match those of Double.

   Exceptions thrown

     `IllegalArgumentException` in case of a finite overflow: the range of a finite duration is `+-(2^63-1)`ns, and no conversion to infinite durations takes place.``

2.  abstract def +(other: Duration): Duration

   Return the sum of that duration and this.

   Return the sum of that duration and this. When involving non-finite summands the semantics match those of Double.

   Exceptions thrown

     `IllegalArgumentException` in case of a finite overflow: the range of a finite duration is `+-(2^63-1)`ns, and no conversion to infinite durations takes place.``

3.  abstract def -(other: Duration): Duration

   Return the difference of that duration and this.

   Return the difference of that duration and this. When involving non-finite summands the semantics match those of Double.

   Exceptions thrown

     `IllegalArgumentException` in case of a finite overflow: the range of a finite duration is `+-(2^63-1)`ns, and no conversion to infinite durations takes place.``

4.  abstract def /(divisor: Duration): Double

   Return the quotient of this and that duration as floating-point number.

   Return the quotient of this and that duration as floating-point number. The semantics are determined by Double as if calculating the quotient of the nanosecond lengths of both factors.

5.  abstract def /(divisor: Double): Duration

   Return this duration divided by the scalar factor.

   Return this duration divided by the scalar factor. When involving non-finite factors the semantics match those of Double.

   Exceptions thrown

     `IllegalArgumentException` in case of a finite overflow: the range of a finite duration is `+-(2^63-1)`ns, and no conversion to infinite durations takes place.``

6.  abstract def compare(that: Duration): Int

   Result of comparing `this` with operand `that`.

   Result of comparing `this` with operand `that`.

   Implement this method to determine how instances of A will be sorted.

   Returns `x` where:

   - `x < 0` when `this < that`
   - `x == 0` when `this == that`
   - `x > 0` when `this > that`
   Definition Classes
     Ordered
7.  abstract def isFinite: Boolean

   This method returns whether this duration is finite, which is not the same as `!isInfinite` for Double because this method also returns `false` for Duration.Undefined.

8.  abstract def length: Long

   Obtain the length of this Duration measured in the unit obtained by the `unit` method.

   Obtain the length of this Duration measured in the unit obtained by the `unit` method.

   Exceptions thrown

     `IllegalArgumentException` when invoked on a non-finite duration

9.  abstract def toCoarsest: Duration

   Return duration which is equal to this duration but with a coarsest Unit, or self in case it is already the coarsest Unit

   Return duration which is equal to this duration but with a coarsest Unit, or self in case it is already the coarsest Unit

   Examples:

       Duration(60, MINUTES).toCoarsest // Duration(1, HOURS)
       Duration(1000, MILLISECONDS).toCoarsest // Duration(1, SECONDS)
       Duration(48, HOURS).toCoarsest // Duration(2, DAYS)
       Duration(5, SECONDS).toCoarsest // Duration(5, SECONDS)

10.  abstract def toDays: Long

    Return the length of this duration measured in whole days, rounding towards zero.

    Return the length of this duration measured in whole days, rounding towards zero.

    Exceptions thrown

      `IllegalArgumentException` when invoked on a non-finite duration

11.  abstract def toHours: Long

    Return the length of this duration measured in whole hours, rounding towards zero.

    Return the length of this duration measured in whole hours, rounding towards zero.

    Exceptions thrown

      `IllegalArgumentException` when invoked on a non-finite duration

12.  abstract def toMicros: Long

    Return the length of this duration measured in whole microseconds, rounding towards zero.

    Return the length of this duration measured in whole microseconds, rounding towards zero.

    Exceptions thrown

      `IllegalArgumentException` when invoked on a non-finite duration

13.  abstract def toMillis: Long

    Return the length of this duration measured in whole milliseconds, rounding towards zero.

    Return the length of this duration measured in whole milliseconds, rounding towards zero.

    Exceptions thrown

      `IllegalArgumentException` when invoked on a non-finite duration

14.  abstract def toMinutes: Long

    Return the length of this duration measured in whole minutes, rounding towards zero.

    Return the length of this duration measured in whole minutes, rounding towards zero.

    Exceptions thrown

      `IllegalArgumentException` when invoked on a non-finite duration

15.  abstract def toNanos: Long

    Return the length of this duration measured in whole nanoseconds, rounding towards zero.

    Return the length of this duration measured in whole nanoseconds, rounding towards zero.

    Exceptions thrown

      `IllegalArgumentException` when invoked on a non-finite duration

16.  abstract def toSeconds: Long

    Return the length of this duration measured in whole seconds, rounding towards zero.

    Return the length of this duration measured in whole seconds, rounding towards zero.

    Exceptions thrown

      `IllegalArgumentException` when invoked on a non-finite duration

17.  abstract def toUnit(unit: TimeUnit): Double

    Return the number of nanoseconds as floating point number, scaled down to the given unit.

    Return the number of nanoseconds as floating point number, scaled down to the given unit. The result may not precisely represent this duration due to the Double datatype's inherent limitations (mantissa size effectively 53 bits). Non-finite durations are represented as

    - Duration.Undefined is mapped to Double.NaN
    - Duration.Inf is mapped to Double.PositiveInfinity
    - Duration.MinusInf is mapped to Double.NegativeInfinity
18.  abstract def unary_-: Duration

    Negate this duration.

    Negate this duration. The only two values which are mapped to themselves are Duration.Zero and Duration.Undefined.

19.  abstract def unit: TimeUnit

    Obtain the time unit in which the length of this duration is measured.

    Obtain the time unit in which the length of this duration is measured.

    Exceptions thrown

      `IllegalArgumentException` when invoked on a non-finite duration

### Concrete Value Members

1.  final def !=(arg0: Any): Boolean

   Test two objects for inequality.

   Test two objects for inequality.

   returns

     `true` if !(this == that), false otherwise.

   Definition Classes
     AnyRef → Any
2.  final def ##: Int

   Equivalent to `x.hashCode` except for boxed numeric types and `null`.

   Equivalent to `x.hashCode` except for boxed numeric types and `null`. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For `null` returns a hashcode where `null.hashCode` throws a `NullPointerException`.

   returns

     a hash value consistent with ==

   Definition Classes
     AnyRef → Any
3.  def ->[B](y: B): (Duration, B)
   Implicit
     This member is added by an implicit conversion from Duration toArrowAssoc[Duration] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()
4.  def <(that: Duration): Boolean

   Returns true if `this` is less than `that`

   Returns true if `this` is less than `that`

   Definition Classes
     Ordered
5.  def <=(that: Duration): Boolean

   Returns true if `this` is less than or equal to `that`.

   Returns true if `this` is less than or equal to `that`.

   Definition Classes
     Ordered
6.  final def ==(arg0: Any): Boolean

   The expression `x == that` is equivalent to `if (x eq null) that eq null else x.equals(that)`.

   The expression `x == that` is equivalent to `if (x eq null) that eq null else x.equals(that)`.

   returns

     `true` if the receiver object is equivalent to the argument; `false` otherwise.

   Definition Classes
     AnyRef → Any
7.  def >(that: Duration): Boolean

   Returns true if `this` is greater than `that`.

   Returns true if `this` is greater than `that`.

   Definition Classes
     Ordered
8.  def >=(that: Duration): Boolean

   Returns true if `this` is greater than or equal to `that`.

   Returns true if `this` is greater than or equal to `that`.

   Definition Classes
     Ordered
9.  final def asInstanceOf[T0]: T0

   Forces the compiler to treat the receiver object as having type `T0`, even though doing so may violate type safety.

   Forces the compiler to treat the receiver object as having type `T0`, even though doing so may violate type safety.

   This method is useful when you believe you have type information the compiler doesn't, and it also isn't possible to check the type at runtime. In such situations, skipping type safety is the only option.

   It is platform dependent whether `asInstanceOf` has any effect at runtime. It might do a runtime type test on the erasure of `T0`, insert a conversion (such as boxing/unboxing), fill in a default value, or do nothing at all.

   In particular, `asInstanceOf` is not a type test. It does **not** mean:

       this match {
        case x: T0 => x
        case _     => throw ClassCastException("...")

   Use pattern matching or isInstanceOf for type testing instead.

   Situations where `asInstanceOf` is useful:

   - when flow analysis fails to deduce `T0` automatically
   - when down-casting a type parameter or an abstract type member (which cannot be checked at runtime due to type erasure) If there is any doubt and you are able to type test instead, you should do so.

   Be careful of using `asInstanceOf` when `T0` is a primitive type. When `T0` is primitive, `asInstanceOf` may insert a conversion instead of a type test. If your intent is to convert, use a `toT` method (`x.toChar`, `x.toByte`, etc.).

   returns

     the receiver object.

   Definition Classes
     Any
   Exceptions thrown

     `ClassCastException` if the receiver is not an instance of the erasure of `T0`, if that can be checked on this platform

10.  def clone(): AnyRef

    Create a copy of the receiver object.

    Create a copy of the receiver object.

    The default implementation of the `clone` method is platform dependent.

    returns

      a copy of the receiver object.

    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.CloneNotSupportedException]) @native()
    Note

      not specified by SLS as a member of AnyRef

11.  def compareTo(that: Duration): Int

    Result of comparing `this` with operand `that`.

    Result of comparing `this` with operand `that`.

    Definition Classes
      Ordered → Comparable
12.  def div(other: Duration): Double

    Return the quotient of this and that duration as floating-point number.

    Return the quotient of this and that duration as floating-point number. The semantics are determined by Double as if calculating the quotient of the nanosecond lengths of both factors.

13.  def div(divisor: Double): Duration

    Return this duration divided by the scalar factor.

    Return this duration divided by the scalar factor. When involving non-finite factors the semantics match those of Double.

    Exceptions thrown

      `IllegalArgumentException` in case of a finite overflow: the range of a finite duration is `+-(2^63-1)`ns, and no conversion to infinite durations takes place.``

14.  def ensuring(cond: (Duration) => Boolean, msg: => Any): Duration
    Implicit
      This member is added by an implicit conversion from Duration toEnsuring[Duration] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
15.  def ensuring(cond: (Duration) => Boolean): Duration
    Implicit
      This member is added by an implicit conversion from Duration toEnsuring[Duration] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
16.  def ensuring(cond: Boolean, msg: => Any): Duration
    Implicit
      This member is added by an implicit conversion from Duration toEnsuring[Duration] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
17.  def ensuring(cond: Boolean): Duration
    Implicit
      This member is added by an implicit conversion from Duration toEnsuring[Duration] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
18.  final def eq(arg0: AnyRef): Boolean

    Tests whether the argument (`that`) is a reference to the receiver object (`this`).

    Tests whether the argument (`that`) is a reference to the receiver object (`this`).

    The `eq` method implements an equivalence relation on non-null instances of `AnyRef`, and has three additional properties:

    - It is consistent: for any non-null instances `x` and `y` of type `AnyRef`, multiple invocations of `x.eq(y)` consistently returns `true` or consistently returns `false`.
    - For any non-null instance `x` of type `AnyRef`, `x.eq(null)` and `null.eq(x)` returns `false`.
    - `null.eq(null)` returns `true`.

    When overriding the `equals` or `hashCode` methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (`o1 eq o2`), they should be equal to each other (`o1 == o2`) and they should hash to the same value (`o1.hashCode == o2.hashCode`).

    returns

      `true` if the argument is a reference to the receiver object; `false` otherwise.

    Definition Classes
      AnyRef
19.  def equals(arg0: AnyRef): Boolean

    The equality method for reference types.

    The equality method for reference types. Default implementation delegates to `eq`.

    See also `equals` in scala.Any.

    returns

      `true` if the receiver object is equivalent to the argument; `false` otherwise.

    Definition Classes
      AnyRef → Any
20.  def finalize(): Unit

    Called by the garbage collector on the receiver object when there are no more references to the object.

    Called by the garbage collector on the receiver object when there are no more references to the object.

    The details of when and if the `finalize` method is invoked, as well as the interaction between `finalize` and non-local returns and exceptions, are all platform dependent.

    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.Throwable])
    Note

      not specified by SLS as a member of AnyRef

21.  final def getClass(): Class[_ <: AnyRef]

    Returns the runtime class representation of the object.

    Returns the runtime class representation of the object.

    returns

      a class object corresponding to the runtime type of the receiver.

    Definition Classes
      AnyRef → Any
    Annotations
      @native()
22.  def gt(other: Duration): Boolean
23.  def gteq(other: Duration): Boolean
24.  def hashCode(): Int

    The hashCode method for reference types.

    The hashCode method for reference types. See hashCode in scala.Any.

    returns

      the hash code value for this object.

    Definition Classes
      AnyRef → Any
    Annotations
      @native()
25.  final def isInstanceOf[T0]: Boolean

    Test whether the dynamic type of the receiver object has the same erasure as `T0`.

    Test whether the dynamic type of the receiver object has the same erasure as `T0`.

    Depending on what `T0` is, the test is done in one of the below ways:

    - `T0` is a non-parameterized class type, e.g. `BigDecimal`: this method returns `true` if the value of the receiver object is a `BigDecimal` or a subtype of `BigDecimal`.
    - `T0` is a parameterized class type, e.g. `List[Int]`: this method returns `true` if the value of the receiver object is some `List[X]` for any `X`. For example, `List(1, 2, 3).isInstanceOf[List[String]]` will return true.
    - `T0` is some singleton type `x.type` or literal `x`: this method returns `this.eq(x)`. For example, `x.isInstanceOf[1]` is equivalent to `x.eq(1)`
    - `T0` is an intersection `X with Y` or `X & Y: this method is equivalent to` x.isInstanceOf[X] && x.isInstanceOf[Y]``
    - `T0` is a union `X | Y`: this method is equivalent to `x.isInstanceOf[X] || x.isInstanceOf[Y]`
    - `T0` is a type parameter or an abstract type member: this method is equivalent to `isInstanceOf[U]` where `U` is `T0`'s upper bound, `Any` if `T0` is unbounded. For example, `x.isInstanceOf[A]` where `A` is an unbounded type parameter will return true for any value of `x`.

    This is exactly equivalent to the type pattern `_: T0`

    returns

      `true` if the receiver object is an instance of erasure of type `T0`; `false` otherwise.

    Definition Classes
      Any
    Note

      due to the unexpectedness of `List(1, 2, 3).isInstanceOf[List[String]]` returning true and `x.isInstanceOf[A]` where `A` is a type parameter or abstract member returning true, these forms issue a warning.

26.  def lt(other: Duration): Boolean
27.  def lteq(other: Duration): Boolean
28.  def max(other: Duration): Duration

    Return the larger of this and that duration as determined by the natural ordering.

29.  def min(other: Duration): Duration

    Return the smaller of this and that duration as determined by the natural ordering.

30.  def minus(other: Duration): Duration

    Return the difference of that duration and this.

    Return the difference of that duration and this. When involving non-finite summands the semantics match those of Double.

    Exceptions thrown

      `IllegalArgumentException` in case of a finite overflow: the range of a finite duration is `+-(2^63-1)`ns, and no conversion to infinite durations takes place.``

31.  def mul(factor: Double): Duration

    Return this duration multiplied by the scalar factor.

    Return this duration multiplied by the scalar factor. When involving non-finite factors the semantics match those of Double.

    Exceptions thrown

      `IllegalArgumentException` in case of a finite overflow: the range of a finite duration is `+-(2^63-1)`ns, and no conversion to infinite durations takes place.``

32.  final def ne(arg0: AnyRef): Boolean

    Equivalent to `!(this eq that)`.

    Equivalent to `!(this eq that)`.

    returns

      `true` if the argument is not a reference to the receiver object; `false` otherwise.

    Definition Classes
      AnyRef
33.  def neg(): Duration

    Negate this duration.

    Negate this duration. The only two values which are mapped to themselves are Duration.Zero and Duration.Undefined.

34.  final def notify(): Unit

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Definition Classes
      AnyRef
    Annotations
      @native()
    Note

      not specified by SLS as a member of AnyRef

35.  final def notifyAll(): Unit

    Wakes up all threads that are waiting on the receiver object's monitor.

    Wakes up all threads that are waiting on the receiver object's monitor.

    Definition Classes
      AnyRef
    Annotations
      @native()
    Note

      not specified by SLS as a member of AnyRef

36.  def plus(other: Duration): Duration

    Return the sum of that duration and this.

    Return the sum of that duration and this. When involving non-finite summands the semantics match those of Double.

    Exceptions thrown

      `IllegalArgumentException` in case of a finite overflow: the range of a finite duration is `+-(2^63-1)`ns, and no conversion to infinite durations takes place.``

37.  def productArity: Int

    The arity of this product.

    The arity of this product.

    returns

      2

    Implicit
      This member is added by an implicit conversion from Duration to(Long, TimeUnit) performed by method durationToPair in scala.concurrent.duration.
    Definition Classes
      Product2 → Product
38.  def productElement(n: Int): Any

    Returns the n-th projection of this product if 0 <= n < productArity, otherwise throws an `IndexOutOfBoundsException`.

    Returns the n-th projection of this product if 0 <= n < productArity, otherwise throws an `IndexOutOfBoundsException`.

    n

      number of the projection to be returned

    returns

      same as `._(n+1)`, for example `productElement(0)` is the same as `._1`.

    Implicit
      This member is added by an implicit conversion from Duration to(Long, TimeUnit) performed by method durationToPair in scala.concurrent.duration.
    Definition Classes
      Product2 → Product
    Annotations
      @throws(clazz = classOf[IndexOutOfBoundsException])
    Exceptions thrown

      `IndexOutOfBoundsException` if the `n` is out of range(n < 0 || n >= 2).

39.  def productElementNames: Iterator[String]

    An iterator over the names of all the elements of this product.

    An iterator over the names of all the elements of this product.

    Implicit
      This member is added by an implicit conversion from Duration to(Long, TimeUnit) performed by method durationToPair in scala.concurrent.duration.
    Definition Classes
      Product
40.  def swap: (TimeUnit, Long)

    Swaps the elements of this `Tuple`.

    Swaps the elements of this `Tuple`.

    returns

      a new Tuple where the first element is the second element of this Tuple and the second element is the first element of this Tuple.

    Implicit
      This member is added by an implicit conversion from Duration to(Long, TimeUnit) performed by method durationToPair in scala.concurrent.duration.
    Definition Classes
      Tuple2
41.  final def synchronized[T0](arg0: => T0): T0

    Executes the code in `body` with an exclusive lock on `this`.

    Executes the code in `body` with an exclusive lock on `this`.

    returns

      the result of `body`

    Definition Classes
      AnyRef
42.  def toString(): String

    Creates a String representation of this object.

    Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.

    returns

      a String representation of the object.

    Definition Classes
      AnyRef → Any
43.  final def wait(): Unit

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--.

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--.

    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
    Note

      not specified by SLS as a member of AnyRef

44.  final def wait(arg0: Long, arg1: Int): Unit

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-

    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
    Note

      not specified by SLS as a member of AnyRef

45.  final def wait(arg0: Long): Unit

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-.

    See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-.

    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException]) @native()
    Note

      not specified by SLS as a member of AnyRef

### Shadowed Implicit Value Members

1.  def +(other: String): String
   Implicit
     This member is added by an implicit conversion from Duration toany2stringadd[Duration] performed by method any2stringadd in scala.Predef.
   Shadowing
     This implicitly inherited member is shadowed by one or more members in this class.
     To access this member you can use a type ascription:

         (duration: any2stringadd[Duration]).+(other)

   Definition Classes
     any2stringadd
2.  def <(that: Duration): Boolean

   Returns true if `this` is less than `that`

   Returns true if `this` is less than `that`

   Implicit
     This member is added by an implicit conversion from Duration tomath.Ordered[Duration] performed by method orderingToOrdered in scala.math.Ordered.
   Shadowing
     This implicitly inherited member is shadowed by one or more members in this class.
     To access this member you can use a type ascription:

         (duration: math.Ordered[Duration]).<(that)

   Definition Classes
     Ordered
3.  def <=(that: Duration): Boolean

   Returns true if `this` is less than or equal to `that`.

   Returns true if `this` is less than or equal to `that`.

   Implicit
     This member is added by an implicit conversion from Duration tomath.Ordered[Duration] performed by method orderingToOrdered in scala.math.Ordered.
   Shadowing
     This implicitly inherited member is shadowed by one or more members in this class.
     To access this member you can use a type ascription:

         (duration: math.Ordered[Duration]).<=(that)

   Definition Classes
     Ordered
4.  def >(that: Duration): Boolean

   Returns true if `this` is greater than `that`.

   Returns true if `this` is greater than `that`.

   Implicit
     This member is added by an implicit conversion from Duration tomath.Ordered[Duration] performed by method orderingToOrdered in scala.math.Ordered.
   Shadowing
     This implicitly inherited member is shadowed by one or more members in this class.
     To access this member you can use a type ascription:

         (duration: math.Ordered[Duration]).>(that)

   Definition Classes
     Ordered
5.  def >=(that: Duration): Boolean

   Returns true if `this` is greater than or equal to `that`.

   Returns true if `this` is greater than or equal to `that`.

   Implicit
     This member is added by an implicit conversion from Duration tomath.Ordered[Duration] performed by method orderingToOrdered in scala.math.Ordered.
   Shadowing
     This implicitly inherited member is shadowed by one or more members in this class.
     To access this member you can use a type ascription:

         (duration: math.Ordered[Duration]).>=(that)

   Definition Classes
     Ordered
6.  def compare(that: Duration): Int

   Result of comparing `this` with operand `that`.

   Result of comparing `this` with operand `that`.

   Implement this method to determine how instances of A will be sorted.

   Returns `x` where:

   - `x < 0` when `this < that`
   - `x == 0` when `this == that`
   - `x > 0` when `this > that`
   Implicit
     This member is added by an implicit conversion from Duration tomath.Ordered[Duration] performed by method orderingToOrdered in scala.math.Ordered.
   Shadowing
     This implicitly inherited member is shadowed by one or more members in this class.
     To access this member you can use a type ascription:

         (duration: math.Ordered[Duration]).compare(that)

   Definition Classes
     Ordered
7.  def compareTo(that: Duration): Int

   Result of comparing `this` with operand `that`.

   Result of comparing `this` with operand `that`.

   Implicit
     This member is added by an implicit conversion from Duration tomath.Ordered[Duration] performed by method orderingToOrdered in scala.math.Ordered.
   Shadowing
     This implicitly inherited member is shadowed by one or more members in this class.
     To access this member you can use a type ascription:

         (duration: math.Ordered[Duration]).compareTo(that)

   Definition Classes
     Ordered → Comparable
8.  def toString(): String

   Creates a String representation of this object.

   Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.

   returns

     a String representation of the object.

   Implicit
     This member is added by an implicit conversion from Duration to(Long, TimeUnit) performed by method durationToPair in scala.concurrent.duration.
   Shadowing
     This implicitly inherited member is shadowed by one or more members in this class.
     To access this member you can use a type ascription:

         (duration: (Long, TimeUnit)).toString()

   Definition Classes
     Tuple2 → AnyRef → Any

### Deprecated Value Members

1.  def formatted(fmtstr: String): String

   Returns string formatted according to given `format` string.

   Returns string formatted according to given `format` string. Format strings are as for `String.format` (@see java.lang.String.format).

   Implicit
     This member is added by an implicit conversion from Duration toStringFormat[Duration] performed by method StringFormat in scala.Predef.
   Definition Classes
     StringFormat
   Annotations
     @deprecated @inline()
   Deprecated

     (Since version 2.12.16) Use `formatString.format(value)` instead of `value.formatted(formatString)`, or use the `f""` string interpolator. In Java 15 and later, `formatted` resolves to the new method in String which has reversed parameters.

2.  def →[B](y: B): (Duration, B)
   Implicit
     This member is added by an implicit conversion from Duration toArrowAssoc[Duration] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @deprecated
   Deprecated

     (Since version 2.13.0) Use `->` instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

### Inherited from math.Ordered[Duration]

### Inherited from Comparable[Duration]

### Inherited from java.io.Serializable

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion orderingToOrdered fromDuration to math.Ordered[Duration]

### Inherited by implicit conversion durationToPair fromDuration to (Long, TimeUnit)

### Inherited by implicit conversion any2stringadd fromDuration to any2stringadd[Duration]

### Inherited by implicit conversion StringFormat fromDuration to StringFormat[Duration]

### Inherited by implicit conversion Ensuring fromDuration to Ensuring[Duration]

### Inherited by implicit conversion ArrowAssoc fromDuration to ArrowAssoc[Duration]

### Ungrouped