Represents any time zone in the world. More...

Inheritance diagram for System.TimeZoneInfo:

Collaboration diagram for System.TimeZoneInfo:

Classes
class	AdjustmentRule
	Provides information about a time zone adjustment, such as the transition to and from daylight saving time. More...

struct	TransitionTime
	Provides information about a specific time change, such as the change from daylight saving time to standard time or vice versa, in a particular time zone. More...

Public Member Functions
AdjustmentRule []	GetAdjustmentRules ()
	Retrieves an array of T:System.TimeZoneInfo.AdjustmentRule objects that apply to the current T:System.TimeZoneInfo object. More...

TimeSpan []	GetAmbiguousTimeOffsets (DateTimeOffset dateTimeOffset)
	Returns information about the possible dates and times that an ambiguous date and time can be mapped to. More...

TimeSpan []	GetAmbiguousTimeOffsets (DateTime dateTime)
	Returns information about the possible dates and times that an ambiguous date and time can be mapped to. More...

TimeSpan	GetUtcOffset (DateTimeOffset dateTimeOffset)
	Calculates the offset or difference between the time in this time zone and Coordinated Universal Time (UTC) for a particular date and time. More...

TimeSpan	GetUtcOffset (DateTime dateTime)
	Calculates the offset or difference between the time in this time zone and Coordinated Universal Time (UTC) for a particular date and time. More...

bool	IsAmbiguousTime (DateTimeOffset dateTimeOffset)
	Determines whether a particular date and time in a particular time zone is ambiguous and can be mapped to two or more Coordinated Universal Time (UTC) times. More...

bool	IsAmbiguousTime (DateTime dateTime)
	Determines whether a particular date and time in a particular time zone is ambiguous and can be mapped to two or more Coordinated Universal Time (UTC) times. More...

bool	IsDaylightSavingTime (DateTimeOffset dateTimeOffset)
	Indicates whether a specified date and time falls in the range of daylight saving time for the time zone of the current T:System.TimeZoneInfo object. More...

bool	IsDaylightSavingTime (DateTime dateTime)
	Indicates whether a specified date and time falls in the range of daylight saving time for the time zone of the current T:System.TimeZoneInfo object. More...

bool	IsInvalidTime (DateTime dateTime)
	Indicates whether a particular date and time is invalid. More...

bool	Equals (TimeZoneInfo other)
	Determines whether the current T:System.TimeZoneInfo object and another T:System.TimeZoneInfo object are equal. More...

override bool	Equals (object obj)
	Determines whether the current T:System.TimeZoneInfo object and another object are equal. More...

override int	GetHashCode ()
	Serves as a hash function for hashing algorithms and data structures such as hash tables. More...

bool	HasSameRules (TimeZoneInfo other)
	Indicates whether the current object and another T:System.TimeZoneInfo object have the same adjustment rules. More...

string	ToSerializedString ()
	Converts the current T:System.TimeZoneInfo object to a serialized string. More...

override string	ToString ()
	Returns the current T:System.TimeZoneInfo object's display name. More...

Public Member Functions inherited from System.IEquatable< TimeZoneInfo >
bool	Equals (T other)
	Indicates whether the current object is equal to another object of the same type. More...

Static Public Member Functions
static void	ClearCachedData ()
	Clears cached time zone data. More...

static DateTimeOffset	ConvertTimeBySystemTimeZoneId (DateTimeOffset dateTimeOffset, string destinationTimeZoneId)
	Converts a time to the time in another time zone based on the time zone's identifier. More...

static DateTime	ConvertTimeBySystemTimeZoneId (DateTime dateTime, string destinationTimeZoneId)
	Converts a time to the time in another time zone based on the time zone's identifier. More...

static DateTime	ConvertTimeBySystemTimeZoneId (DateTime dateTime, string sourceTimeZoneId, string destinationTimeZoneId)
	Converts a time from one time zone to another based on time zone identifiers. More...

static DateTimeOffset	ConvertTime (DateTimeOffset dateTimeOffset, TimeZoneInfo destinationTimeZone)
	Converts a time to the time in a particular time zone. More...

static DateTime	ConvertTime (DateTime dateTime, TimeZoneInfo destinationTimeZone)
	Converts a time to the time in a particular time zone. More...

static DateTime	ConvertTime (DateTime dateTime, TimeZoneInfo sourceTimeZone, TimeZoneInfo destinationTimeZone)
	Converts a time from one time zone to another. More...

static DateTime	ConvertTimeFromUtc (DateTime dateTime, TimeZoneInfo destinationTimeZone)
	Converts a Coordinated Universal Time (UTC) to the time in a specified time zone. More...

static DateTime	ConvertTimeToUtc (DateTime dateTime)
	Converts the specified date and time to Coordinated Universal Time (UTC). More...

static DateTime	ConvertTimeToUtc (DateTime dateTime, TimeZoneInfo sourceTimeZone)
	Converts the time in a specified time zone to Coordinated Universal Time (UTC). More...

static TimeZoneInfo	FromSerializedString (string source)
	Deserializes a string to re-create an original serialized T:System.TimeZoneInfo object. More...

static ReadOnlyCollection< TimeZoneInfo >	GetSystemTimeZones ()
	Returns a sorted collection of all the time zones about which information is available on the local system. More...

static TimeZoneInfo	CreateCustomTimeZone (string id, TimeSpan baseUtcOffset, string displayName, string standardDisplayName)
	Creates a custom time zone with a specified identifier, an offset from Coordinated Universal Time (UTC), a display name, and a standard time display name. More...

static TimeZoneInfo	CreateCustomTimeZone (string id, TimeSpan baseUtcOffset, string displayName, string standardDisplayName, string daylightDisplayName, AdjustmentRule[] adjustmentRules)
	Creates a custom time zone with a specified identifier, an offset from Coordinated Universal Time (UTC), a display name, a standard time name, a daylight saving time name, and daylight saving time rules. More...

static TimeZoneInfo	CreateCustomTimeZone (string id, TimeSpan baseUtcOffset, string displayName, string standardDisplayName, string daylightDisplayName, AdjustmentRule[] adjustmentRules, bool disableDaylightSavingTime)
	Creates a custom time zone with a specified identifier, an offset from Coordinated Universal Time (UTC), a display name, a standard time name, a daylight saving time name, daylight saving time rules, and a value that indicates whether the returned object reflects daylight saving time information. More...

static TimeZoneInfo	FindSystemTimeZoneById (string id)
	Retrieves a T:System.TimeZoneInfo object from the registry based on its identifier. More...

Properties
string	Id `[get]`
	Gets the time zone identifier. More...

string	DisplayName `[get]`
	Gets the general display name that represents the time zone. More...

string	StandardName `[get]`
	Gets the display name for the time zone's standard time. More...

string	DaylightName `[get]`
	Gets the display name for the current time zone's daylight saving time. More...

TimeSpan	BaseUtcOffset `[get]`
	Gets the time difference between the current time zone's standard time and Coordinated Universal Time (UTC). More...

bool	SupportsDaylightSavingTime `[get]`
	Gets a value indicating whether the time zone has any daylight saving time rules. More...

static TimeZoneInfo	Local `[get]`
	Gets a T:System.TimeZoneInfo object that represents the local time zone. More...

static TimeZoneInfo	Utc `[get]`
	Gets a T:System.TimeZoneInfo object that represents the Coordinated Universal Time (UTC) zone. More...

Detailed Description

Represents any time zone in the world.

Definition at line 20 of file TimeZoneInfo.cs.

Member Function Documentation

◆ ClearCachedData()

static void System.TimeZoneInfo.ClearCachedData ( )

static

Clears cached time zone data.

Definition at line 1544 of file TimeZoneInfo.cs.

◆ ConvertTime() [1/3]

static DateTimeOffset System.TimeZoneInfo.ConvertTime	(	DateTimeOffset	dateTimeOffset,
		TimeZoneInfo	destinationTimeZone
	)

static

Converts a time to the time in a particular time zone.

Parameters

dateTimeOffset	The date and time to convert.
destinationTimeZone	The time zone to convert dateTime to.

Returns: The date and time in the destination time zone.

Exceptions

T:System.ArgumentNullException The value of the destinationTimeZone parameter is null.

Definition at line 1612 of file TimeZoneInfo.cs.

◆ ConvertTime() [2/3]

static DateTime System.TimeZoneInfo.ConvertTime	(	DateTime	dateTime,
		TimeZoneInfo	destinationTimeZone
	)

static

Converts a time to the time in a particular time zone.

Parameters

dateTime	The date and time to convert.
destinationTimeZone	The time zone to convert dateTime to.

Returns: The date and time in the destination time zone.

Exceptions

T:System.ArgumentException	The value of the dateTime parameter represents an invalid time.
T:System.ArgumentNullException	The value of the destinationTimeZone parameter is `null`.

Definition at line 1639 of file TimeZoneInfo.cs.

◆ ConvertTime() [3/3]

static DateTime System.TimeZoneInfo.ConvertTime	(	DateTime	dateTime,
		TimeZoneInfo	sourceTimeZone,
		TimeZoneInfo	destinationTimeZone
	)

static

Converts a time from one time zone to another.

Parameters

dateTime	The date and time to convert.
sourceTimeZone	The time zone of dateTime .
destinationTimeZone	The time zone to convert dateTime to.

Returns: The date and time in the destination time zone that corresponds to the dateTime parameter in the source time zone.

Exceptions

T:System.ArgumentException The P:System.DateTime.Kind property of the dateTime parameter is F:System.DateTimeKind.Local, but the sourceTimeZone parameter does not equal F:System.DateTimeKind.Local. For more information, see the Remarks section. -or-The P:System.DateTime.Kind property of the dateTime parameter is F:System.DateTimeKind.Utc, but the sourceTimeZone parameter does not equal P:System.TimeZoneInfo.Utc.-or-The dateTime parameter is an invalid time (that is, it represents a time that does not exist because of a time zone's adjustment rules).

T:System.ArgumentNullException The sourceTimeZone parameter is null.-or-The destinationTimeZone parameter is null.

Definition at line 1665 of file TimeZoneInfo.cs.

◆ ConvertTimeBySystemTimeZoneId() [1/3]

static DateTimeOffset System.TimeZoneInfo.ConvertTimeBySystemTimeZoneId	(	DateTimeOffset	dateTimeOffset,
		string	destinationTimeZoneId
	)

static

Converts a time to the time in another time zone based on the time zone's identifier.

Parameters

dateTimeOffset	The date and time to convert.
destinationTimeZoneId	The identifier of the destination time zone.

Returns: The date and time in the destination time zone.

Exceptions

T:System.ArgumentNullException	destinationTimeZoneId is `null`.
T:System.InvalidTimeZoneException	The time zone identifier was found but the registry data is corrupted.
T:System.Security.SecurityException	The process does not have the permissions required to read from the registry key that contains the time zone information.
T:System.TimeZoneNotFoundException	The destinationTimeZoneId identifier was not found on the local system.

Definition at line 1558 of file TimeZoneInfo.cs.

◆ ConvertTimeBySystemTimeZoneId() [2/3]

static DateTime System.TimeZoneInfo.ConvertTimeBySystemTimeZoneId	(	DateTime	dateTime,
		string	destinationTimeZoneId
	)

static

Converts a time to the time in another time zone based on the time zone's identifier.

Parameters

dateTime	The date and time to convert.
destinationTimeZoneId	The identifier of the destination time zone.

Returns: The date and time in the destination time zone.

Exceptions

T:System.ArgumentNullException	destinationTimeZoneId is `null`.
T:System.InvalidTimeZoneException	The time zone identifier was found, but the registry data is corrupted.
T:System.Security.SecurityException	The process does not have the permissions required to read from the registry key that contains the time zone information.
T:System.TimeZoneNotFoundException	The destinationTimeZoneId identifier was not found on the local system.

Definition at line 1572 of file TimeZoneInfo.cs.

◆ ConvertTimeBySystemTimeZoneId() [3/3]

static DateTime System.TimeZoneInfo.ConvertTimeBySystemTimeZoneId	(	DateTime	dateTime,
		string	sourceTimeZoneId,
		string	destinationTimeZoneId
	)

static

Converts a time from one time zone to another based on time zone identifiers.

Parameters

dateTime	The date and time to convert.
sourceTimeZoneId	The identifier of the source time zone.
destinationTimeZoneId	The identifier of the destination time zone.

Returns: The date and time in the destination time zone that corresponds to the dateTime parameter in the source time zone.

Exceptions

T:System.ArgumentException	The P:System.DateTime.Kind property of the dateTime parameter does not correspond to the source time zone.-or- dateTime is an invalid time in the source time zone.
T:System.ArgumentNullException	sourceTimeZoneId is `null`.-or- destinationTimeZoneId is `null`.
T:System.InvalidTimeZoneException	The time zone identifiers were found, but the registry data is corrupted.
T:System.Security.SecurityException	The process does not have the permissions required to read from the registry key that contains the time zone information.
T:System.TimeZoneNotFoundException	The sourceTimeZoneId identifier was not found on the local system.-or-The destinationTimeZoneId identifier was not found on the local system.
T:System.Security.SecurityException	The user does not have the permissions required to read from the registry keys that hold time zone data.

Definition at line 1591 of file TimeZoneInfo.cs.

◆ ConvertTimeFromUtc()

static DateTime System.TimeZoneInfo.ConvertTimeFromUtc	(	DateTime	dateTime,
		TimeZoneInfo	destinationTimeZone
	)

static

Converts a Coordinated Universal Time (UTC) to the time in a specified time zone.

Parameters

dateTime	The Coordinated Universal Time (UTC).
destinationTimeZone	The time zone to convert dateTime to.

Returns: The date and time in the destination time zone. Its P:System.DateTime.Kind property is F:System.DateTimeKind.Utc if destinationTimeZone is P:System.TimeZoneInfo.Utc; otherwise, its P:System.DateTime.Kind property is F:System.DateTimeKind.Unspecified.

Exceptions

T:System.ArgumentException	The P:System.DateTime.Kind property of dateTime is F:System.DateTimeKind.Local.
T:System.ArgumentNullException	destinationTimeZone is `null`.

Definition at line 1729 of file TimeZoneInfo.cs.

◆ ConvertTimeToUtc() [1/2]

static DateTime System.TimeZoneInfo.ConvertTimeToUtc ( DateTime dateTime )

static

Converts the specified date and time to Coordinated Universal Time (UTC).

Parameters

dateTime The date and time to convert.

Returns: The Coordinated Universal Time (UTC) that corresponds to the dateTime parameter. The T:System.DateTime value's P:System.DateTime.Kind property is always set to F:System.DateTimeKind.Utc.

Exceptions

T:System.ArgumentException TimeZoneInfo.Local.IsInvalidDateTime( dateTime ) returns true.

Definition at line 1742 of file TimeZoneInfo.cs.

◆ ConvertTimeToUtc() [2/2]

static DateTime System.TimeZoneInfo.ConvertTimeToUtc	(	DateTime	dateTime,
		TimeZoneInfo	sourceTimeZone
	)

static

Converts the time in a specified time zone to Coordinated Universal Time (UTC).

Parameters

dateTime	The date and time to convert.
sourceTimeZone	The time zone of dateTime .

Returns: The Coordinated Universal Time (UTC) that corresponds to the dateTime parameter. The T:System.DateTime object's P:System.DateTime.Kind property is always set to F:System.DateTimeKind.Utc.

Exceptions

T:System.ArgumentException	dateTime `.Kind` is F:System.DateTimeKind.Utc and sourceTimeZone does not equal P:System.TimeZoneInfo.Utc.-or- dateTime `.Kind` is F:System.DateTimeKind.Local and sourceTimeZone does not equal P:System.TimeZoneInfo.Local.-or- sourceTimeZone `.IsInvalidDateTime(` dateTime `)` returns `true`.
T:System.ArgumentNullException	sourceTimeZone is `null`.

Definition at line 1777 of file TimeZoneInfo.cs.

◆ CreateCustomTimeZone() [1/3]

static TimeZoneInfo System.TimeZoneInfo.CreateCustomTimeZone	(	string	id,
		TimeSpan	baseUtcOffset,
		string	displayName,
		string	standardDisplayName
	)

static

Creates a custom time zone with a specified identifier, an offset from Coordinated Universal Time (UTC), a display name, and a standard time display name.

Parameters

id	The time zone's identifier.
baseUtcOffset	An object that represents the time difference between this time zone and Coordinated Universal Time (UTC).
displayName	The display name of the new time zone.
standardDisplayName	The name of the new time zone's standard time.

Returns: The new time zone.

Exceptions

T:System.ArgumentNullException	The id parameter is `null`.
T:System.ArgumentException	The id parameter is an empty string ("").-or-The baseUtcOffset parameter does not represent a whole number of minutes.
T:System.ArgumentOutOfRangeException	The baseUtcOffset parameter is greater than 14 hours or less than -14 hours.

Definition at line 1980 of file TimeZoneInfo.cs.

◆ CreateCustomTimeZone() [2/3]

static TimeZoneInfo System.TimeZoneInfo.CreateCustomTimeZone	(	string	id,
		TimeSpan	baseUtcOffset,
		string	displayName,
		string	standardDisplayName,
		string	daylightDisplayName,
		AdjustmentRule []	adjustmentRules
	)

static

Creates a custom time zone with a specified identifier, an offset from Coordinated Universal Time (UTC), a display name, a standard time name, a daylight saving time name, and daylight saving time rules.

Parameters

id	The time zone's identifier.
baseUtcOffset	An object that represents the time difference between this time zone and Coordinated Universal Time (UTC).
displayName	The display name of the new time zone.
standardDisplayName	The new time zone's standard time name.
daylightDisplayName	The daylight saving time name of the new time zone.
adjustmentRules	An array that augments the base UTC offset for a particular period.

Returns: A T:System.TimeZoneInfo object that represents the new time zone.

Exceptions

T:System.ArgumentNullException	The id parameter is `null`.
T:System.ArgumentException	The id parameter is an empty string ("").-or-The baseUtcOffset parameter does not represent a whole number of minutes.
T:System.ArgumentOutOfRangeException	The baseUtcOffset parameter is greater than 14 hours or less than -14 hours.
T:System.InvalidTimeZoneException	The adjustment rules specified in the adjustmentRules parameter overlap.-or-The adjustment rules specified in the adjustmentRules parameter are not in chronological order.-or-One or more elements in adjustmentRules are `null`.-or-A date can have multiple adjustment rules applied to it.-or-The sum of the baseUtcOffset parameter and the P:System.TimeZoneInfo.AdjustmentRule.DaylightDelta value of one or more objects in the adjustmentRules array is greater than 14 hours or less than -14 hours.

Definition at line 1997 of file TimeZoneInfo.cs.

◆ CreateCustomTimeZone() [3/3]

static TimeZoneInfo System.TimeZoneInfo.CreateCustomTimeZone	(	string	id,
		TimeSpan	baseUtcOffset,
		string	displayName,
		string	standardDisplayName,
		string	daylightDisplayName,
		AdjustmentRule []	adjustmentRules,
		bool	disableDaylightSavingTime
	)

static

Creates a custom time zone with a specified identifier, an offset from Coordinated Universal Time (UTC), a display name, a standard time name, a daylight saving time name, daylight saving time rules, and a value that indicates whether the returned object reflects daylight saving time information.

Parameters

id	The time zone's identifier.
baseUtcOffset	A T:System.TimeSpan object that represents the time difference between this time zone and Coordinated Universal Time (UTC).
displayName	The display name of the new time zone.
standardDisplayName	The standard time name of the new time zone.
daylightDisplayName	The daylight saving time name of the new time zone.
adjustmentRules	An array of T:System.TimeZoneInfo.AdjustmentRule objects that augment the base UTC offset for a particular period.
disableDaylightSavingTime	`true` to discard any daylight saving time-related information present in adjustmentRules with the new object; otherwise, `false`.

Returns: The new time zone. If the disableDaylightSavingTime parameter is true, the returned object has no daylight saving time data.

Exceptions

T:System.ArgumentNullException	The id parameter is `null`.
T:System.ArgumentException	The id parameter is an empty string ("").-or-The baseUtcOffset parameter does not represent a whole number of minutes.
T:System.ArgumentOutOfRangeException	The baseUtcOffset parameter is greater than 14 hours or less than -14 hours.
T:System.InvalidTimeZoneException	The adjustment rules specified in the adjustmentRules parameter overlap.-or-The adjustment rules specified in the adjustmentRules parameter are not in chronological order.-or-One or more elements in adjustmentRules are `null`.-or-A date can have multiple adjustment rules applied to it.-or-The sum of the baseUtcOffset parameter and the P:System.TimeZoneInfo.AdjustmentRule.DaylightDelta value of one or more objects in the adjustmentRules array is greater than 14 hours or less than -14 hours.

Definition at line 2016 of file TimeZoneInfo.cs.

◆ Equals() [1/2]

bool System.TimeZoneInfo.Equals ( TimeZoneInfo other )

Determines whether the current T:System.TimeZoneInfo object and another T:System.TimeZoneInfo object are equal.

Parameters

other A second object to compare with the current object.

Returns: true if the two T:System.TimeZoneInfo objects are equal; otherwise, false.

Definition at line 1788 of file TimeZoneInfo.cs.

◆ Equals() [2/2]

override bool System.TimeZoneInfo.Equals ( object obj )

Determines whether the current T:System.TimeZoneInfo object and another object are equal.

Parameters

obj	A second object to compare with the current object.

Returns: true if obj is a T:System.TimeZoneInfo object that is equal to the current instance; otherwise, false.

Definition at line 1801 of file TimeZoneInfo.cs.

◆ FindSystemTimeZoneById()

static TimeZoneInfo System.TimeZoneInfo.FindSystemTimeZoneById ( string id )

static

Retrieves a T:System.TimeZoneInfo object from the registry based on its identifier.

Parameters

id	The time zone identifier, which corresponds to the P:System.TimeZoneInfo.Id property.

Returns: An object whose identifier is the value of the id parameter.

Exceptions

T:System.OutOfMemoryException	The system does not have enough memory to hold information about the time zone.
T:System.ArgumentNullException	The id parameter is `null`.
T:System.TimeZoneNotFoundException	The time zone identifier specified by id was not found. This means that a registry key whose name matches id does not exist, or that the key exists but does not contain any time zone data.
T:System.Security.SecurityException	The process does not have the permissions required to read from the registry key that contains the time zone information.
T:System.InvalidTimeZoneException	The time zone identifier was found, but the registry data is corrupted.

Definition at line 2515 of file TimeZoneInfo.cs.

◆ FromSerializedString()

static TimeZoneInfo System.TimeZoneInfo.FromSerializedString ( string source )

static

Deserializes a string to re-create an original serialized T:System.TimeZoneInfo object.

Parameters

source The string representation of the serialized T:System.TimeZoneInfo object.

Returns: The original serialized object.

Exceptions

T:System.ArgumentException	The source parameter is F:System.String.Empty.
T:System.ArgumentNullException	The source parameter is a null string.
T:System.Runtime.Serialization.SerializationException	The source parameter cannot be deserialized back into a T:System.TimeZoneInfo object.

Definition at line 1817 of file TimeZoneInfo.cs.

◆ GetAdjustmentRules()

AdjustmentRule [] System.TimeZoneInfo.GetAdjustmentRules ( )

Retrieves an array of T:System.TimeZoneInfo.AdjustmentRule objects that apply to the current T:System.TimeZoneInfo object.

Returns: An array of objects for this time zone.

Exceptions

T:System.OutOfMemoryException The system does not have enough memory to make an in-memory copy of the adjustment rules.

Definition at line 1253 of file TimeZoneInfo.cs.

◆ GetAmbiguousTimeOffsets() [1/2]

TimeSpan [] System.TimeZoneInfo.GetAmbiguousTimeOffsets ( DateTimeOffset dateTimeOffset )

Returns information about the possible dates and times that an ambiguous date and time can be mapped to.

Parameters

dateTimeOffset A date and time.

Returns: An array of objects that represents possible Coordinated Universal Time (UTC) offsets that a particular date and time can be mapped to.

Exceptions

T:System.ArgumentException dateTimeOffset is not an ambiguous time.

Definition at line 1268 of file TimeZoneInfo.cs.

◆ GetAmbiguousTimeOffsets() [2/2]

TimeSpan [] System.TimeZoneInfo.GetAmbiguousTimeOffsets ( DateTime dateTime )

Returns information about the possible dates and times that an ambiguous date and time can be mapped to.

Parameters

dateTime A date and time.

Returns: An array of objects that represents possible Coordinated Universal Time (UTC) offsets that a particular date and time can be mapped to.

Exceptions

T:System.ArgumentException dateTime is not an ambiguous time.

Definition at line 1307 of file TimeZoneInfo.cs.

◆ GetHashCode()

override int System.TimeZoneInfo.GetHashCode ( )

Serves as a hash function for hashing algorithms and data structures such as hash tables.

Returns: A 32-bit signed integer that serves as the hash code for this T:System.TimeZoneInfo object.

Definition at line 1833 of file TimeZoneInfo.cs.

◆ GetSystemTimeZones()

static ReadOnlyCollection<TimeZoneInfo> System.TimeZoneInfo.GetSystemTimeZones ( )

static

Returns a sorted collection of all the time zones about which information is available on the local system.

Returns: A read-only collection of T:System.TimeZoneInfo objects.

Exceptions

T:System.OutOfMemoryException	There is insufficient memory to store all time zone information.
T:System.Security.SecurityException	The user does not have permission to read from the registry keys that contain time zone information.

Definition at line 1844 of file TimeZoneInfo.cs.

◆ GetUtcOffset() [1/2]

TimeSpan System.TimeZoneInfo.GetUtcOffset ( DateTimeOffset dateTimeOffset )

Calculates the offset or difference between the time in this time zone and Coordinated Universal Time (UTC) for a particular date and time.

Parameters

dateTimeOffset The date and time to determine the offset for.

Returns: An object that indicates the time difference between Coordinated Universal Time (UTC) and the current time zone.

Definition at line 1358 of file TimeZoneInfo.cs.

◆ GetUtcOffset() [2/2]

TimeSpan System.TimeZoneInfo.GetUtcOffset ( DateTime dateTime )

Calculates the offset or difference between the time in this time zone and Coordinated Universal Time (UTC) for a particular date and time.

Parameters

dateTime The date and time to determine the offset for.

Returns: An object that indicates the time difference between the two time zones.

Definition at line 1367 of file TimeZoneInfo.cs.

◆ HasSameRules()

bool System.TimeZoneInfo.HasSameRules ( TimeZoneInfo other )

Indicates whether the current object and another T:System.TimeZoneInfo object have the same adjustment rules.

Parameters

other A second object to compare with the current T:System.TimeZoneInfo object.

Returns: true if the two time zones have identical adjustment rules and an identical base offset; otherwise, false.

Exceptions

T:System.ArgumentNullException The other parameter is null.

Definition at line 1879 of file TimeZoneInfo.cs.

◆ IsAmbiguousTime() [1/2]

bool System.TimeZoneInfo.IsAmbiguousTime ( DateTimeOffset dateTimeOffset )

Determines whether a particular date and time in a particular time zone is ambiguous and can be mapped to two or more Coordinated Universal Time (UTC) times.

Parameters

dateTimeOffset A date and time.

Returns: true if the dateTimeOffset parameter is ambiguous in the current time zone; otherwise, false.

Definition at line 1409 of file TimeZoneInfo.cs.

◆ IsAmbiguousTime() [2/2]

bool System.TimeZoneInfo.IsAmbiguousTime ( DateTime dateTime )

Determines whether a particular date and time in a particular time zone is ambiguous and can be mapped to two or more Coordinated Universal Time (UTC) times.

Parameters

dateTime A date and time value.

Returns: true if the dateTime parameter is ambiguous; otherwise, false.

Exceptions

T:System.ArgumentException The P:System.DateTime.Kind property of the dateTime value is F:System.DateTimeKind.Local and dateTime is an invalid time.

Definition at line 1424 of file TimeZoneInfo.cs.

◆ IsDaylightSavingTime() [1/2]

bool System.TimeZoneInfo.IsDaylightSavingTime ( DateTimeOffset dateTimeOffset )

Indicates whether a specified date and time falls in the range of daylight saving time for the time zone of the current T:System.TimeZoneInfo object.

Parameters

dateTimeOffset A date and time value.

Returns: true if the dateTimeOffset parameter is a daylight saving time; otherwise, false.

Definition at line 1464 of file TimeZoneInfo.cs.

◆ IsDaylightSavingTime() [2/2]

bool System.TimeZoneInfo.IsDaylightSavingTime ( DateTime dateTime )

Indicates whether a specified date and time falls in the range of daylight saving time for the time zone of the current T:System.TimeZoneInfo object.

Parameters

dateTime A date and time value.

Returns: true if the dateTime parameter is a daylight saving time; otherwise, false.

Exceptions

T:System.ArgumentException The P:System.DateTime.Kind property of the dateTime value is F:System.DateTimeKind.Local and dateTime is an invalid time.

Definition at line 1476 of file TimeZoneInfo.cs.

◆ IsInvalidTime()

bool System.TimeZoneInfo.IsInvalidTime ( DateTime dateTime )

Indicates whether a particular date and time is invalid.

Parameters

dateTime A date and time value.

Returns: true if dateTime is invalid; otherwise, false.

Definition at line 1524 of file TimeZoneInfo.cs.

◆ ToSerializedString()

string System.TimeZoneInfo.ToSerializedString ( )

Converts the current T:System.TimeZoneInfo object to a serialized string.

Returns: A string that represents the current T:System.TimeZoneInfo object.

Definition at line 1915 of file TimeZoneInfo.cs.

◆ ToString()

override string System.TimeZoneInfo.ToString ( )

Returns the current T:System.TimeZoneInfo object's display name.

Returns: The value of the P:System.TimeZoneInfo.DisplayName property of the current T:System.TimeZoneInfo object.

Definition at line 1923 of file TimeZoneInfo.cs.

Property Documentation

◆ BaseUtcOffset

TimeSpan System.TimeZoneInfo.BaseUtcOffset

get

Gets the time difference between the current time zone's standard time and Coordinated Universal Time (UTC).

Returns: An object that indicates the time difference between the current time zone's standard time and Coordinated Universal Time (UTC).

Definition at line 1205 of file TimeZoneInfo.cs.

◆ DaylightName

string System.TimeZoneInfo.DaylightName

get

Gets the display name for the current time zone's daylight saving time.

Returns: The display name for the time zone's daylight saving time.

Definition at line 1189 of file TimeZoneInfo.cs.

◆ DisplayName

string System.TimeZoneInfo.DisplayName

get

Gets the general display name that represents the time zone.

Returns: The time zone's general display name.

Definition at line 1157 of file TimeZoneInfo.cs.

◆ Id

string System.TimeZoneInfo.Id

get

Gets the time zone identifier.

Returns: The time zone identifier.

Definition at line 1145 of file TimeZoneInfo.cs.

◆ Local

TimeZoneInfo System.TimeZoneInfo.Local

staticget

Gets a T:System.TimeZoneInfo object that represents the local time zone.

Returns: An object that represents the local time zone.

Definition at line 1230 of file TimeZoneInfo.cs.

◆ StandardName

string System.TimeZoneInfo.StandardName

get

Gets the display name for the time zone's standard time.

Returns: The display name of the time zone's standard time.

Definition at line 1173 of file TimeZoneInfo.cs.

◆ SupportsDaylightSavingTime

bool System.TimeZoneInfo.SupportsDaylightSavingTime

get

Gets a value indicating whether the time zone has any daylight saving time rules.

Returns: true if the time zone supports daylight saving time; otherwise, false.

Definition at line 1218 of file TimeZoneInfo.cs.

◆ Utc

TimeZoneInfo System.TimeZoneInfo.Utc

staticget

Gets a T:System.TimeZoneInfo object that represents the Coordinated Universal Time (UTC) zone.

Returns: An object that represents the Coordinated Universal Time (UTC) zone.

Definition at line 1242 of file TimeZoneInfo.cs.

The documentation for this class was generated from the following file:

D:/All cs/System/TimeZoneInfo.cs

Classes

Public Member Functions

Static Public Member Functions

Properties

Detailed Description

Member Function Documentation

◆ ClearCachedData()

◆ ConvertTime() [1/3]

◆ ConvertTime() [2/3]

◆ ConvertTime() [3/3]

◆ ConvertTimeBySystemTimeZoneId() [1/3]

◆ ConvertTimeBySystemTimeZoneId() [2/3]

◆ ConvertTimeBySystemTimeZoneId() [3/3]

◆ ConvertTimeFromUtc()

◆ ConvertTimeToUtc() [1/2]

◆ ConvertTimeToUtc() [2/2]

◆ CreateCustomTimeZone() [1/3]

◆ CreateCustomTimeZone() [2/3]

◆ CreateCustomTimeZone() [3/3]

◆ Equals() [1/2]

◆ Equals() [2/2]

◆ FindSystemTimeZoneById()

◆ FromSerializedString()

◆ GetAdjustmentRules()

◆ GetAmbiguousTimeOffsets() [1/2]

◆ GetAmbiguousTimeOffsets() [2/2]

◆ GetHashCode()

◆ GetSystemTimeZones()

◆ GetUtcOffset() [1/2]

◆ GetUtcOffset() [2/2]

◆ HasSameRules()

◆ IsAmbiguousTime() [1/2]

◆ IsAmbiguousTime() [2/2]

◆ IsDaylightSavingTime() [1/2]

◆ IsDaylightSavingTime() [2/2]

◆ IsInvalidTime()

◆ ToSerializedString()

◆ ToString()

Property Documentation

◆ BaseUtcOffset

◆ DaylightName

◆ DisplayName

◆ Id

◆ Local

◆ StandardName

◆ SupportsDaylightSavingTime

◆ Utc