Struct Offset

An offset from UTC in milliseconds. A positive value means that the local time is ahead of UTC (e.g. for Europe); a negative value means that the local time is behind UTC (e.g. for America).

Since 1.0.x

Availability net35-Client, PCL

Implements

IEquatable<Offset>

IComparable<Offset>

IFormattable

IComparable

IXmlSerializable

ISerializable

Inherited Members

Object.Equals(Object, Object)

Object.ReferenceEquals(Object, Object)

Object.GetType()

Namespace: NodaTime

Assembly: NodaTime.dll

Syntax

[Serializable]
public struct Offset : IEquatable<Offset>, IComparable<Offset>, IFormattable, IComparable, IXmlSerializable, ISerializable

Remarks

Offsets are always strictly less than 24 hours (as either a positive or negative offset).

Fields

MaxValue

The maximum permitted offset; one millisecond less than a standard day after UTC.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static readonly Offset MaxValue

Field Value

Type	Description
Offset

MinValue

The minimum permitted offset; one millisecond less than a standard day before UTC.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static readonly Offset MinValue

Field Value

Type	Description
Offset

Zero

An offset of zero ticks - effectively the permanent offset for UTC.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static readonly Offset Zero

Field Value

Type	Description
Offset

Properties

Milliseconds

Gets the total number of milliseconds in the offset, which may be negative.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public int Milliseconds { get; }

Property Value

Type	Description
Int32

Ticks

Returns the number of ticks represented by this offset, which may be negative.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public long Ticks { get; }

Property Value

Type	Description
Int64	The number of ticks.

Remarks

Offsets are only accurate to millisecond precision; the number of milliseconds is simply multiplied by 10,000 to give the number of ticks.

Methods

Add(Offset, Offset)

Adds one Offset to another. Friendly alternative to operator+().

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset Add(Offset left, Offset right)

Parameters

Type	Name	Description
Offset	left	The left hand side of the operator.
Offset	right	The right hand side of the operator.

Returns

Type	Description
Offset	A new Offset representing the sum of the given values.

Exceptions

Type	Condition
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.

CompareTo(Offset)

Compares the current object with another object of the same type.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public int CompareTo(Offset other)

Parameters

Type	Name	Description
Offset	other	An object to compare with this object.

Returns

Type	Description
Int32	A 32-bit signed integer that indicates the relative order of the objects being compared. The return value has the following meanings: Value Meaning < 0 This object is less than the other parameter. 0 This object is equal to other. > 0 This object is greater than other.

Equals(Offset)

Indicates whether the current object is equal to another object of the same type.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public bool Equals(Offset other)

Parameters

Type	Name	Description
Offset	other	An object to compare with this object.

Returns

Type	Description
Boolean	true if the current object is equal to the other parameter; otherwise, false.

Equals(Object)

Determines whether the specified System.Object is equal to this instance.

Since 1.0.x

Availability net35-Client, PCL

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)

FromHours(Int32)

Creates an offset with the specified number of hours, which may be negative.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset FromHours(int hours)

Parameters

Type	Name	Description
Int32	hours	The number of hours to represent in the new offset.

Returns

Type	Description
Offset	A new Offset representing the given value.

Exceptions

Type	Condition
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.

FromHoursAndMinutes(Int32, Int32)

Creates an offset with the specified number of hours and minutes.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset FromHoursAndMinutes(int hours, int minutes)

Parameters

Type	Name	Description
Int32	hours	The number of hours to represent in the new offset.
Int32	minutes	The number of minutes to represent in the new offset.

Returns

Type	Description
Offset	A new Offset representing the given value.

Remarks

The result simply takes the hours and minutes and converts each component into milliseconds separately. As a result, a negative offset should usually be obtained by making both arguments negative. For example, to obtain "three hours and ten minutes behind UTC" you might call Offset.FromHoursAndMinutes(-3, -10).

Exceptions

Type	Condition
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.

FromMilliseconds(Int32)

Returns the offset for the given milliseconds value, which may be negative.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset FromMilliseconds(int milliseconds)

Parameters

Type	Name	Description
Int32	milliseconds	The int milliseconds value.

Returns

Type	Description
Offset	The Offset for the given milliseconds value

Exceptions

Type	Condition
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.

FromTicks(Int64)

Creates a new offset from the given number of ticks, which may be negative.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset FromTicks(long ticks)

Parameters

Type	Name	Description
Int64	ticks	The number of ticks specifying the length of the new offset.

Returns

Type	Description
Offset	An offset representing the given number of ticks, to the (truncated) millisecond.

Remarks

Offsets are only accurate to millisecond precision; the given number of ticks is simply divided by 10,000 to give the number of milliseconds - any remainder is truncated.

Exceptions

Type	Condition
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.

GetHashCode()

Returns a hash code for this instance.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public override int GetHashCode()

Returns

Type	Description
Int32	A hash code for this instance, suitable for use in hashing algorithms and data structures like a hash table.

Overrides

System.ValueType.GetHashCode()

Max(Offset, Offset)

Returns the greater offset of the given two, i.e. the one which will give a later local time when added to an instant.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset Max(Offset x, Offset y)

Parameters

Type	Name	Description
Offset	x	The first offset
Offset	y	The second offset

Returns

Type	Description
Offset	The greater offset of x and y.

Min(Offset, Offset)

Returns the lower offset of the given two, i.e. the one which will give an earlier local time when added to an instant.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset Min(Offset x, Offset y)

Parameters

Type	Name	Description
Offset	x	The first offset
Offset	y	The second offset

Returns

Type	Description
Offset	The lower offset of x and y.

Minus(Offset)

Returns the result of subtracting another Offset from this one, for a fluent alternative to operator-().

Since 1.0.x

Availability net35-Client, PCL

Declaration

public Offset Minus(Offset other)

Parameters

Type	Name	Description
Offset	other	The offset to subtract

Returns

Type	Description
Offset	The result of subtracting the other offset from this one.

Exceptions

Type	Condition
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.

Negate(Offset)

Returns the negation of the specified offset. This is the method form of the unary minus operator.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset Negate(Offset offset)

Parameters

Type	Name	Description
Offset	offset	The offset to negate.

Returns

Type	Description
Offset	The negation of the specified offset.

Plus(Offset)

Returns the result of adding another Offset to this one, for a fluent alternative to operator+().

Since 1.0.x

Availability net35-Client, PCL

Declaration

public Offset Plus(Offset other)

Parameters

Type	Name	Description
Offset	other	The offset to add

Returns

Type	Description
Offset	The result of adding the other offset to this one.

Exceptions

Type	Condition
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.

Subtract(Offset, Offset)

Subtracts one Offset from another. Friendly alternative to operator-().

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset Subtract(Offset minuend, Offset subtrahend)

Parameters

Type	Name	Description
Offset	minuend	The left hand side of the operator.
Offset	subtrahend	The right hand side of the operator.

Returns

Type	Description
Offset	A new Offset representing the difference of the given values.

Exceptions

Type	Condition
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.

ToString()

Returns a System.String that represents this instance.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public override string ToString()

Returns

Type	Description
String	The value of the current instance in the default format pattern ("g"), using the current thread's culture to obtain a format provider.

Overrides

System.ValueType.ToString()

ToString(String, IFormatProvider)

Formats the value of the current instance using the specified pattern.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public string ToString(string patternText, IFormatProvider formatProvider)

Parameters

Type	Name	Description
String	patternText	The System.String specifying the pattern to use, or null to use the default format pattern ("g").
IFormatProvider	formatProvider	The System.IFormatProvider to use when formatting the value, or null to use the current thread's culture to obtain a format provider.

Returns

Type	Description
String	A System.String containing the value of the current instance in the specified format.

ToTimeSpan()

Converts this offset to a .NET standard System.TimeSpan value.

Since 1.0.x

Availability net35-Client, PCL

Declaration

public TimeSpan ToTimeSpan()

Returns

Type	Description
TimeSpan	An equivalent System.TimeSpan to this value.

Operators

Addition(Offset, Offset)

Implements the operator + (addition).

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset operator +(Offset left, Offset right)

Parameters

Type	Name	Description
Offset	left	The left hand side of the operator.
Offset	right	The right hand side of the operator.

Returns

Type	Description
Offset	A new Offset representing the sum of the given values.

Exceptions

Type	Condition
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.

Equality(Offset, Offset)

Implements the operator == (equality).

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static bool operator ==(Offset left, Offset right)

Parameters

Type	Name	Description
Offset	left	The left hand side of the operator.
Offset	right	The right hand side of the operator.

Returns

Type	Description
Boolean	true if values are equal to each other, otherwise false.

GreaterThan(Offset, Offset)

Implements the operator > (greater than).

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static bool operator>(Offset left, Offset right)

Parameters

Type	Name	Description
Offset	left	The left hand side of the operator.
Offset	right	The right hand side of the operator.

Returns

Type	Description
Boolean	true if the left value is greater than the right value, otherwise false.

GreaterThanOrEqual(Offset, Offset)

Implements the operator >= (greater than or equal).

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static bool operator >=(Offset left, Offset right)

Parameters

Type	Name	Description
Offset	left	The left hand side of the operator.
Offset	right	The right hand side of the operator.

Returns

Type	Description
Boolean	true if the left value is greater than or equal to the right value, otherwise false.

Inequality(Offset, Offset)

Implements the operator != (inequality).

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static bool operator !=(Offset left, Offset right)

Parameters

Type	Name	Description
Offset	left	The left hand side of the operator.
Offset	right	The right hand side of the operator.

Returns

Type	Description
Boolean	true if values are not equal to each other, otherwise false.

LessThan(Offset, Offset)

Implements the operator < (less than).

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static bool operator <(Offset left, Offset right)

Parameters

Type	Name	Description
Offset	left	The left hand side of the operator.
Offset	right	The right hand side of the operator.

Returns

Type	Description
Boolean	true if the left value is less than the right value, otherwise false.

LessThanOrEqual(Offset, Offset)

Implements the operator <= (less than or equal).

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static bool operator <=(Offset left, Offset right)

Parameters

Type	Name	Description
Offset	left	The left hand side of the operator.
Offset	right	The right hand side of the operator.

Returns

Type	Description
Boolean	true if the left value is less than or equal to the right value, otherwise false.

Subtraction(Offset, Offset)

Implements the operator - (subtraction).

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset operator -(Offset minuend, Offset subtrahend)

Parameters

Type	Name	Description
Offset	minuend	The left hand side of the operator.
Offset	subtrahend	The right hand side of the operator.

Returns

Type	Description
Offset	A new Offset representing the difference of the given values.

Exceptions

Type	Condition
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.
ArgumentOutOfRangeException	The result of the operation is outside the range of Offset.

UnaryNegation(Offset)

Implements the unary operator - (negation).

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset operator -(Offset offset)

Parameters

Type	Name	Description
Offset	offset	The offset to negate.

Returns

Type	Description
Offset	A new Offset instance with a negated value.

UnaryPlus(Offset)

Implements the unary operator + .

Since 1.0.x

Availability net35-Client, PCL

Declaration

public static Offset operator +(Offset offset)

Parameters

Type	Name	Description
Offset	offset	The operand.

Returns

Type	Description
Offset	The same Offset instance

Remarks

There is no method form of this operator; the Plus(Offset) method is an instance method for addition, and is more useful than a method form of this would be.

Explicit Interface Implementations

IComparable.CompareTo(Object)

Implementation of System.IComparable.CompareTo(System.Object) to compare two offsets.

Since 1.0.x

Availability net35-Client, PCL

Declaration

int IComparable.CompareTo(object obj)

Parameters

Type	Name	Description
Object	obj	The object to compare this value with.

Returns

Type	Description
Int32	The result of comparing this instant with another one; see CompareTo(Offset) for general details. If obj is null, this method returns a value greater than 0.

Remarks

This uses explicit interface implementation to avoid it being called accidentally. The generic implementation should usually be preferred.

Exceptions

Type	Condition
ArgumentException	obj is non-null but does not refer to an instance of Offset.

ISerializable.GetObjectData(SerializationInfo, StreamingContext)

Implementation of System.Runtime.Serialization.ISerializable.GetObjectData(System.Runtime.Serialization.SerializationInfo, System.Runtime.Serialization.StreamingContext).

Since 1.2.x

Availability net35-Client

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.

IXmlSerializable.GetSchema()

Since 1.2.x

Availability net35-Client, PCL

Declaration

XmlSchema IXmlSerializable.GetSchema()

Returns

Type	Description
XmlSchema

IXmlSerializable.ReadXml(XmlReader)

Since 1.2.x

Availability net35-Client, PCL

Declaration

void IXmlSerializable.ReadXml(XmlReader reader)

Parameters

Type	Name	Description
XmlReader	reader

IXmlSerializable.WriteXml(XmlWriter)

Since 1.2.x

Availability net35-Client, PCL

Declaration

void IXmlSerializable.WriteXml(XmlWriter writer)

Parameters

Type	Name	Description
XmlWriter	writer

Implements

System.IEquatable<T>

System.IComparable<T>

System.IFormattable

System.IComparable

System.Xml.Serialization.IXmlSerializable

System.Runtime.Serialization.ISerializable