Struct Interval

An interval between two instants in time (start and end).
Since 1.0.x
Availability net45, netstandard1.3
Implements
IEquatable<Interval>
IXmlSerializable
ISerializable
Inherited Members
Object.Equals(Object, Object)
Object.ReferenceEquals(Object, Object)
Object.GetType()
Namespace: NodaTime
Assembly: NodaTime.dll
Syntax
[Serializable]
public struct Interval : IEquatable<Interval>, IXmlSerializable, ISerializable
Remarks

The interval includes the start instant and excludes the end instant. However, an interval may be missing its start or end, in which case the interval is deemed to be infinite in that direction.

The end may equal the start (resulting in an empty interval), but will not be before the start.

Constructors

Interval(Instant, Instant)

Initializes a new instance of the Interval struct. The interval includes the start instant and excludes the end instant. The end may equal the start (resulting in an empty interval), but must not be before the start.
Since 1.0.x
Availability net45, netstandard1.3
Declaration
public Interval(Instant start, Instant end)
Parameters
Type Name Description
Instant start The start Instant.
Instant end The end Instant.
Exceptions
Type Condition
ArgumentOutOfRangeException end is earlier than start.

Interval(Nullable<Instant>, Nullable<Instant>)

Initializes a new instance of the Interval struct from two nullable Instant values.
Since 2.0.x
Availability net45, netstandard1.3
Declaration
public Interval(Instant? start, Instant? end)
Parameters
Type Name Description
Nullable<Instant> start The start Instant or null.
Nullable<Instant> end The end Instant or null.
Remarks
If the start is null, the interval is deemed to stretch to the start of time. If the end is null, the interval is deemed to stretch to the end of time.
Exceptions
Type Condition
ArgumentOutOfRangeException end is earlier than start, if they are both non-null.

Properties

Duration

Returns the duration of the interval.
Since 1.0.x
Availability net45, netstandard1.3
Declaration
public Duration Duration { get; }
Property Value
Type Description
Duration The duration of the interval.
Remarks
This will always be a non-negative duration, though it may be zero.
Exceptions
Type Condition
System.InvalidOperationException The interval extends to the start or end of time.

End

Gets the end instant - the exclusive upper bound of the interval.
Since 1.0.x
Availability net45, netstandard1.3
Declaration
public Instant End { get; }
Property Value
Type Description
Instant The end Instant.
Exceptions
Type Condition
System.InvalidOperationException The interval extends to the end of time.
See Also

HasEnd

Returns true if this interval has a fixed end point, or false if it extends to the end of time.
Since 2.0.x
Availability net45, netstandard1.3
Declaration
public bool HasEnd { get; }
Property Value
Type Description
Boolean true if this interval has a fixed end point, or false if it extends to the end of time.

HasStart

Returns true if this interval has a fixed start point, or false if it extends to the start of time.
Since 2.0.x
Availability net45, netstandard1.3
Declaration
public bool HasStart { get; }
Property Value
Type Description
Boolean true if this interval has a fixed start point, or false if it extends to the start of time.

Start

Gets the start instant - the inclusive lower bound of the interval.
Since 1.0.x
Availability net45, netstandard1.3
Declaration
public Instant Start { get; }
Property Value
Type Description
Instant The start Instant.
Remarks
This will never be later than End, though it may be equal to it.
Exceptions
Type Condition
System.InvalidOperationException The interval extends to the start of time.
See Also

Methods

Contains(Instant)

Returns whether or not this interval contains the given instant.
Since 1.2.x
Availability net45, netstandard1.3
Declaration
public bool Contains(Instant instant)
Parameters
Type Name Description
Instant instant Instant to test.
Returns
Type Description
Boolean True if this interval contains the given instant; false otherwise.

Equals(Interval)

Indicates whether the value of this interval is equal to the value of the specified interval.
Since 1.0.x
Availability net45, netstandard1.3
Declaration
public bool Equals(Interval other)
Parameters
Type Name Description
Interval other The value to compare with this instance.
Returns
Type Description
Boolean true if the value of this instant is equal to the value of the other parameter; otherwise, false.

Equals(Object)

Determines whether the specified System.Object is equal to this instance.
Since 1.0.x
Availability net45, netstandard1.3
Declaration
public override bool Equals(object obj)
Parameters
Type Name Description
Object obj The System.Object to compare with this instance.
Returns
Type Description
Boolean true if the specified System.Object is equal to this instance; otherwise, false.
Overrides
System.ValueType.Equals(System.Object)

GetHashCode()

Returns the hash code for this instance.
Since 1.0.x
Availability net45, netstandard1.3
Declaration
public override int GetHashCode()
Returns
Type Description
Int32 A 32-bit signed integer that is the hash code for this instance.
Overrides
System.ValueType.GetHashCode()

ToString()

Returns a string representation of this interval, in extended ISO-8601 format: the format is "start/end" where each instant uses a format of "uuuu'-'MM'-'dd'T'HH':'mm':'ss;FFFFFFFFF'Z'". If the start or end is infinite, the relevant part uses "StartOfTime" or "EndOfTime" to represent this.
Since 1.0.x
Availability net45, netstandard1.3
Declaration
public override string ToString()
Returns
Type Description
String A string representation of this interval.
Overrides
System.ValueType.ToString()

Operators

Equality(Interval, Interval)

Implements the operator ==.
Since 1.0.x
Availability net45, netstandard1.3
Declaration
public static bool operator ==(Interval left, Interval right)
Parameters
Type Name Description
Interval left The left.
Interval right The right.
Returns
Type Description
Boolean The result of the operator.

Inequality(Interval, Interval)

Implements the operator !=.
Since 1.0.x
Availability net45, netstandard1.3
Declaration
public static bool operator !=(Interval left, Interval right)
Parameters
Type Name Description
Interval left The left.
Interval right The right.
Returns
Type Description
Boolean The result of the operator.

Explicit Interface Implementations

ISerializable.GetObjectData(SerializationInfo, StreamingContext)

Implementation of System.Runtime.Serialization.ISerializable.GetObjectData(System.Runtime.Serialization.SerializationInfo, System.Runtime.Serialization.StreamingContext).
Since 1.2.x
Availability net45
Declaration
[SecurityCritical]
void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)
Parameters
Type Name Description
SerializationInfo info The System.Runtime.Serialization.SerializationInfo to populate with data.
StreamingContext context The destination for this serialization.
Exceptions
Type Condition
ArgumentNullException info is null.

IXmlSerializable.GetSchema()

Since 1.2.x
Availability net45, netstandard1.3
Declaration
XmlSchema IXmlSerializable.GetSchema()
Returns
Type Description
XmlSchema

IXmlSerializable.ReadXml(XmlReader)

Since 1.2.x
Availability net45, netstandard1.3
Declaration
void IXmlSerializable.ReadXml(XmlReader reader)
Parameters
Type Name Description
XmlReader reader
Exceptions
Type Condition
ArgumentNullException reader is null.

IXmlSerializable.WriteXml(XmlWriter)

Since 1.2.x
Availability net45, netstandard1.3
Declaration
void IXmlSerializable.WriteXml(XmlWriter writer)
Parameters
Type Name Description
XmlWriter writer
Exceptions
Type Condition
ArgumentNullException writer is null.

Implements

System.IEquatable<T>
System.Xml.Serialization.IXmlSerializable
System.Runtime.Serialization.ISerializable