System.TimeZoneInfo Class Reference

Classes
class	AdjustmentRule
class	CachedData
class	OffsetAndRule
struct	StringSerializer
struct	TransitionTime

Public Member Functions
TimeSpan[]	GetAmbiguousTimeOffsets (DateTimeOffset dateTimeOffset)
TimeSpan[]	GetAmbiguousTimeOffsets (DateTime dateTime)
TimeSpan	GetUtcOffset (DateTimeOffset dateTimeOffset)
TimeSpan	GetUtcOffset (DateTime dateTime)
bool	IsAmbiguousTime (DateTimeOffset dateTimeOffset)
bool	IsAmbiguousTime (DateTime dateTime)
bool	IsDaylightSavingTime (DateTimeOffset dateTimeOffset)
bool	IsDaylightSavingTime (DateTime dateTime)
bool	IsInvalidTime (DateTime dateTime)
bool	Equals ([NotNullWhen(true)] TimeZoneInfo? other)
override bool	Equals ([NotNullWhen(true)] object? obj)
override int	GetHashCode ()
bool	HasSameRules (TimeZoneInfo other)
string	ToSerializedString ()
override string	ToString ()
AdjustmentRule[]	GetAdjustmentRules ()
bool	Equals (T? other)
void	OnDeserialization (object? sender)

Static Public Member Functions
static void	ClearCachedData ()
static DateTimeOffset	ConvertTimeBySystemTimeZoneId (DateTimeOffset dateTimeOffset, string destinationTimeZoneId)
static DateTime	ConvertTimeBySystemTimeZoneId (DateTime dateTime, string destinationTimeZoneId)
static DateTime	ConvertTimeBySystemTimeZoneId (DateTime dateTime, string sourceTimeZoneId, string destinationTimeZoneId)
static DateTimeOffset	ConvertTime (DateTimeOffset dateTimeOffset, TimeZoneInfo destinationTimeZone)
static DateTime	ConvertTime (DateTime dateTime, TimeZoneInfo destinationTimeZone)
static DateTime	ConvertTime (DateTime dateTime, TimeZoneInfo sourceTimeZone, TimeZoneInfo destinationTimeZone)
static DateTime	ConvertTimeFromUtc (DateTime dateTime, TimeZoneInfo destinationTimeZone)
static DateTime	ConvertTimeToUtc (DateTime dateTime)
static DateTime	ConvertTimeToUtc (DateTime dateTime, TimeZoneInfo sourceTimeZone)
static TimeZoneInfo	FromSerializedString (string source)
static ReadOnlyCollection< TimeZoneInfo >	GetSystemTimeZones ()
static TimeZoneInfo	CreateCustomTimeZone (string id, TimeSpan baseUtcOffset, string? displayName, string? standardDisplayName)
static TimeZoneInfo	CreateCustomTimeZone (string id, TimeSpan baseUtcOffset, string? displayName, string? standardDisplayName, string? daylightDisplayName, AdjustmentRule[]? adjustmentRules)
static TimeZoneInfo	CreateCustomTimeZone (string id, TimeSpan baseUtcOffset, string? displayName, string? standardDisplayName, string? daylightDisplayName, AdjustmentRule[]? adjustmentRules, bool disableDaylightSavingTime)
static bool	TryConvertIanaIdToWindowsId (string ianaId, [NotNullWhen(true)] out string? windowsId)
static bool	TryConvertWindowsIdToIanaId (string windowsId, [NotNullWhen(true)] out string? ianaId)
static bool	TryConvertWindowsIdToIanaId (string windowsId, string? region, [NotNullWhen(true)] out string? ianaId)
static TimeZoneInfo	FindSystemTimeZoneById (string id)

Package Functions
TimeSpan	GetUtcOffset (DateTime dateTime, TimeZoneInfoOptions flags)
bool	IsAmbiguousTime (DateTime dateTime, TimeZoneInfoOptions flags)
bool	IsDaylightSavingTime (DateTime dateTime, TimeZoneInfoOptions flags)

Static Package Functions
static TimeSpan	GetLocalUtcOffset (DateTime dateTime, TimeZoneInfoOptions flags)
static DateTime	ConvertTime (DateTime dateTime, TimeZoneInfo sourceTimeZone, TimeZoneInfo destinationTimeZone, TimeZoneInfoOptions flags)
static DateTime	ConvertTimeToUtc (DateTime dateTime, TimeZoneInfoOptions flags)
static TimeSpan	GetUtcOffsetFromUtc (DateTime time, TimeZoneInfo zone, out bool isDaylightSavings, out bool isAmbiguousLocalDst)
static DateTime	TransitionTimeToDateTime (int year, TransitionTime transitionTime)
static bool	UtcOffsetOutOfRange (TimeSpan offset)
static TimeSpan	GetDateTimeNowUtcOffsetFromUtc (DateTime time, out bool isAmbiguousLocalDst)

Properties
string	Id [get]
bool	HasIanaId [get]
string	DisplayName [get]
string	StandardName [get]
string	DaylightName [get]
TimeSpan	BaseUtcOffset [get]
bool	SupportsDaylightSavingTime [get]
static TimeZoneInfo	Local [get]
static TimeZoneInfo	Utc [get]

Private Types
enum	TimeZoneInfoResult { Success , TimeZoneNotFoundException , InvalidTimeZoneException , SecurityException }

Private Member Functions
AdjustmentRule	GetAdjustmentRuleForAmbiguousOffsets (DateTime adjustedTime, out int? ruleIndex)
AdjustmentRule	GetPreviousAdjustmentRule (AdjustmentRule rule, int? ruleIndex)
TimeSpan	GetUtcOffset (DateTime dateTime, TimeZoneInfoOptions flags, CachedData cachedData)
bool	IsDaylightSavingTime (DateTime dateTime, TimeZoneInfoOptions flags, CachedData cachedData)
	TimeZoneInfo (string id, TimeSpan baseUtcOffset, string displayName, string standardDisplayName, string daylightDisplayName, AdjustmentRule[] adjustmentRules, bool disableDaylightSavingTime, bool hasIanaId=false)
void IDeserializationCallback.	OnDeserialization (object sender)
void ISerializable.	GetObjectData (SerializationInfo info, StreamingContext context)
	TimeZoneInfo (SerializationInfo info, StreamingContext context)
AdjustmentRule	GetAdjustmentRuleForTime (DateTime dateTime, out int? ruleIndex)
AdjustmentRule	GetAdjustmentRuleForTime (DateTime dateTime, bool dateTimeisUtc, out int? ruleIndex)
int	CompareAdjustmentRuleToDateTime (AdjustmentRule rule, AdjustmentRule previousRule, DateTime dateTime, DateTime dateOnly, bool dateTimeisUtc)
DateTime	ConvertToUtc (DateTime dateTime, TimeSpan daylightDelta, TimeSpan baseUtcOffsetDelta)
DateTime	ConvertFromUtc (DateTime dateTime, TimeSpan daylightDelta, TimeSpan baseUtcOffsetDelta)
DateTime	ConvertToFromUtc (DateTime dateTime, TimeSpan daylightDelta, TimeSpan baseUtcOffsetDelta, bool convertToUtc)
DaylightTimeStruct	GetDaylightTime (int year, AdjustmentRule rule, int? ruleIndex)
TimeSpan	GetDaylightSavingsStartOffsetFromUtc (TimeSpan baseUtcOffset, AdjustmentRule rule, int? ruleIndex)
	TimeZoneInfo (in Interop.Kernel32.TIME_ZONE_INFORMATION zone, bool dstDisabled)

Static Private Member Functions
static DateTime	ConvertTime (DateTime dateTime, TimeZoneInfo sourceTimeZone, TimeZoneInfo destinationTimeZone, TimeZoneInfoOptions flags, CachedData cachedData)
static DateTime	ConvertUtcToTimeZone (long ticks, TimeZoneInfo destinationTimeZone, out bool isAmbiguousLocalDst)
static bool	GetIsDaylightSavings (DateTime time, AdjustmentRule rule, DaylightTimeStruct daylightTime)
static TimeSpan	GetDaylightSavingsEndOffsetFromUtc (TimeSpan baseUtcOffset, AdjustmentRule rule)
static bool	GetIsDaylightSavingsFromUtc (DateTime time, int year, TimeSpan utc, AdjustmentRule rule, int? ruleIndex, out bool isAmbiguousLocalDst, TimeZoneInfo zone)
static bool	CheckIsDst (DateTime startTime, DateTime time, DateTime endTime, bool ignoreYearAdjustment, AdjustmentRule rule)
static bool	GetIsAmbiguousTime (DateTime time, AdjustmentRule rule, DaylightTimeStruct daylightTime)
static bool	GetIsInvalidTime (DateTime time, AdjustmentRule rule, DaylightTimeStruct daylightTime)
static TimeSpan	GetUtcOffset (DateTime time, TimeZoneInfo zone)
static TimeSpan	GetUtcOffsetFromUtc (DateTime time, TimeZoneInfo zone)
static TimeSpan	GetUtcOffsetFromUtc (DateTime time, TimeZoneInfo zone, out bool isDaylightSavings)
static TimeZoneInfoResult	TryGetTimeZone (string id, bool dstDisabled, out TimeZoneInfo value, out Exception e, CachedData cachedData, bool alwaysFallbackToLocalMachine=false)
static TimeZoneInfoResult	TryGetTimeZoneUsingId (string id, bool dstDisabled, out TimeZoneInfo value, out Exception e, CachedData cachedData, bool alwaysFallbackToLocalMachine)
static TimeZoneInfoResult	TryGetTimeZoneFromLocalMachine (string id, bool dstDisabled, out TimeZoneInfo value, out Exception e, CachedData cachedData)
static void	ValidateTimeZoneInfo (string id, TimeSpan baseUtcOffset, AdjustmentRule[] adjustmentRules, out bool adjustmentRulesSupportDst)
static TimeSpan	GetUtcOffset (TimeSpan baseUtcOffset, AdjustmentRule adjustmentRule)
static bool	IsValidAdjustmentRuleOffset (TimeSpan baseUtcOffset, AdjustmentRule adjustmentRule)
static TimeZoneInfo	CreateUtcTimeZone ()
static unsafe bool	TryConvertIanaIdToWindowsId (string ianaId, bool allocate, out string windowsId)
static unsafe bool	TryConvertWindowsIdToIanaId (string windowsId, string region, bool allocate, out string ianaId)
static void	PopulateAllSystemTimeZones (CachedData cachedData)
static string	GetAlternativeId (string id, out bool idIsIana)
static bool	CheckDaylightSavingTimeNotSupported (in Interop.Kernel32.TIME_ZONE_INFORMATION timeZone)
static AdjustmentRule	CreateAdjustmentRuleFromTimeZoneInformation (in Interop.Kernel32.REG_TZI_FORMAT timeZoneInformation, DateTime startDate, DateTime endDate, int defaultBaseUtcOffset)
static string	FindIdFromTimeZoneInformation (in Interop.Kernel32.TIME_ZONE_INFORMATION timeZone, out bool dstDisabled)
static TimeZoneInfo	GetLocalTimeZone (CachedData cachedData)
static TimeZoneInfo	GetLocalTimeZoneFromWin32Data (in Interop.Kernel32.TIME_ZONE_INFORMATION timeZoneInformation, bool dstDisabled)
static bool	TransitionTimeFromTimeZoneInformation (in Interop.Kernel32.REG_TZI_FORMAT timeZoneInformation, out TransitionTime transitionTime, bool readStartDate)
static bool	TryCreateAdjustmentRules (string id, in Interop.Kernel32.REG_TZI_FORMAT defaultTimeZoneInformation, out AdjustmentRule[] rules, out Exception e, int defaultBaseUtcOffset)
static unsafe bool	TryGetTimeZoneEntryFromRegistry (RegistryKey key, string name, out Interop.Kernel32.REG_TZI_FORMAT dtzi)
static bool	TryCompareStandardDate (in Interop.Kernel32.TIME_ZONE_INFORMATION timeZone, in Interop.Kernel32.REG_TZI_FORMAT registryTimeZoneInfo)
static bool	TryCompareTimeZoneInformationToRegistry (in Interop.Kernel32.TIME_ZONE_INFORMATION timeZone, string id, out bool dstDisabled)
static string	GetLocalizedNameByMuiNativeResource (string resource)
static unsafe string	GetLocalizedNameByNativeResource (string filePath, int resource)
static void	GetLocalizedNamesByRegistryKey (RegistryKey key, out string displayName, out string standardName, out string daylightName)
static TimeZoneInfoResult	TryGetTimeZoneFromLocalMachine (string id, out TimeZoneInfo value, out Exception e)
static string	GetUtcStandardDisplayName ()
static string	GetUtcFullDisplayName (string timeZoneId, string standardDisplayName)

Private Attributes
readonly string	_id
readonly string	_displayName
readonly string	_standardDisplayName
readonly string	_daylightDisplayName
readonly TimeSpan	_baseUtcOffset
readonly bool	_supportsDaylightSavingTime
readonly AdjustmentRule[]	_adjustmentRules
List< TimeZoneInfo >	_equivalentZones

Static Private Attributes
static readonly TimeZoneInfo	s_utcTimeZone = CreateUtcTimeZone()
static CachedData	s_cachedData = new CachedData()
static readonly DateTime	s_maxDateOnly = new DateTime(9999, 12, 31)
static readonly DateTime	s_minDateOnly = new DateTime(1, 1, 2)
static readonly TimeSpan	MaxOffset = TimeSpan.FromHours(14.0)
static readonly TimeSpan	MinOffset = -MaxOffset

Detailed Description

Definition at line 16 of file TimeZoneInfo.cs.

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

• source/System.Private.CoreLib/System/TimeZoneInfo.cs