TimeZoneInfo.TransitionTime.CreateFixedDateRule(DateTime, Int32, Int32) TimeZoneInfo.TransitionTime.CreateFixedDateRule(DateTime, Int32, Int32) TimeZoneInfo.TransitionTime.CreateFixedDateRule(DateTime, Int32, Int32) TimeZoneInfo.TransitionTime.CreateFixedDateRule(DateTime, Int32, Int32) Method

Definizione

Definisce una modifica dell'ora che usa una regola a data fissa, ovvero una modifica dell'ora che avviene in un giorno specifico di un determinato mese.Defines a time change that uses a fixed-date rule (that is, a time change that occurs on a specific day of a specific month).

public:
 static TimeZoneInfo::TransitionTime CreateFixedDateRule(DateTime timeOfDay, int month, int day);
public static TimeZoneInfo.TransitionTime CreateFixedDateRule (DateTime timeOfDay, int month, int day);
static member CreateFixedDateRule : DateTime * int * int -> TimeZoneInfo.TransitionTime
Public Shared Function CreateFixedDateRule (timeOfDay As DateTime, month As Integer, day As Integer) As TimeZoneInfo.TransitionTime

Parametri

timeOfDay
DateTime DateTime DateTime DateTime

Ora in cui avviene la modifica dell'ora.The time at which the time change occurs. Questo parametro corrisponde alla proprietà TimeOfDay.This parameter corresponds to the TimeOfDay property.

month
Int32 Int32 Int32 Int32

Mese in cui avviene la modifica dell'ora.The month in which the time change occurs. Questo parametro corrisponde alla proprietà Month.This parameter corresponds to the Month property.

day
Int32 Int32 Int32 Int32

Giorno del mese in cui avviene la modifica dell'ora.The day of the month on which the time change occurs. Questo parametro corrisponde alla proprietà Day.This parameter corresponds to the Day property.

Restituisce

Eccezioni

Il parametro timeOfDay ha un componente di data non predefinito.The timeOfDay parameter has a non-default date component.

-oppure--or- La proprietà Kind del parametro timeOfDay non è Unspecified.The timeOfDay parameter's Kind property is not Unspecified.

-oppure--or- Il parametro timeOfDay non rappresenta un numero intero di millisecondi.The timeOfDay parameter does not represent a whole number of milliseconds.

Il parametro month è minore di 1 o maggiore di 12.The month parameter is less than 1 or greater than 12.

-oppure--or- Il parametro day è minore di 1 o maggiore di 31.The day parameter is less than 1 or greater than 31.

Esempi

L'esempio seguente crea le transizioni di fuso orario per un fuso orario immaginario usando una regola a data fissa e una regola a data mobile.The following example creates time zone transitions for an imaginary time zone by using both a fixed-date rule and a floating-date rule. La regola a data fissa definisce una regolazione del fuso orario che inizia alle 2.00The fixed-date rule defines a time zone adjustment that starts at 2:00 A.M. il 15 marzo e finisce alle 3:00on March 15 and ends at 3:00 A.M. il 15 novembre per gli anni 1900 a 1955.on November 15 for the years 1900 to 1955.

// Declare necessary TimeZoneInfo.AdjustmentRule objects for time zone
TimeZoneInfo imaginaryTZ;
TimeSpan delta = new TimeSpan(1, 0, 0);
TimeZoneInfo.AdjustmentRule adjustment;
List<TimeZoneInfo.AdjustmentRule> adjustmentList = new List<TimeZoneInfo.AdjustmentRule>();
// Declare transition time variables to hold transition time information
TimeZoneInfo.TransitionTime transitionRuleStart, transitionRuleEnd;
                      
// Define a fictitious new time zone consisting of fixed and floating adjustment rules 
// Define fixed rule (for 1900-1955)
transitionRuleStart = TimeZoneInfo.TransitionTime.CreateFixedDateRule(new DateTime(1, 1, 1, 2, 0, 0), 3, 15);
transitionRuleEnd = TimeZoneInfo.TransitionTime.CreateFixedDateRule(new DateTime(1, 1, 1, 3, 0, 0), 11, 15);
adjustment = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule(new DateTime(1900, 1, 1), new DateTime(1955, 12, 31), 
             delta, transitionRuleStart, transitionRuleEnd);
adjustmentList.Add(adjustment);
// Define floating rule (for 1956- )
transitionRuleStart = TimeZoneInfo.TransitionTime.CreateFloatingDateRule(new DateTime(1, 1, 1, 2, 0, 0), 3, 5, DayOfWeek.Sunday);
transitionRuleEnd = TimeZoneInfo.TransitionTime.CreateFloatingDateRule(new DateTime(1, 1, 1, 3, 0, 0), 10, 4, DayOfWeek.Sunday); 
adjustment = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule(new DateTime(1956, 1, 1), DateTime.MaxValue.Date, delta, transitionRuleStart, transitionRuleEnd);
adjustmentList.Add(adjustment); 

// Create fictitious time zone   
imaginaryTZ = TimeZoneInfo.CreateCustomTimeZone("Fictitious Standard Time", new TimeSpan(-9, 0, 0), 
                "(GMT-09:00) Fictitious Time", "Fictitious Standard Time", 
                "Fictitious Daylight Time", adjustmentList.ToArray());
' Declare necessary TimeZoneInfo.AdjustmentRule objects for time zone
Dim imaginaryTZ As TimeZoneInfo
Dim delta As New TimeSpan(1, 0, 0)
Dim adjustment As TimeZoneInfo.AdjustmentRule
Dim adjustmentList As New List(Of TimeZoneInfo.AdjustmentRule)
' Declare transition time variables to hold transition time information
Dim transitionRuleStart, transitionRuleEnd As TimeZoneInfo.TransitionTime
                      
' Define a fictitious new time zone consisting of fixed and floating adjustment rules 
' Define fixed rule (for 1900-1955)
transitionRuleStart = TimeZoneInfo.TransitionTime.CreateFixedDateRule(#2:00:00AM#, 3, 15)
transitionRuleEnd = TimeZoneInfo.TransitionTime.CreateFixedDateRule(#3:00:00AM#, 11, 15)
adjustment = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule(#1/1/1900#, #12/31/1955#, delta, _
             transitionRuleStart, transitionRuleEnd)
adjustmentList.Add(adjustment)
' Define floating rule (for 1956- )
transitionRuleStart = TimeZoneInfo.TransitionTime.CreateFloatingDateRule(#02:00:00AM#, 3, 5, DayOfWeek.Sunday)
transitionRuleEnd = TimeZoneInfo.TransitionTime.CreateFloatingDateRule(#03:00:00AM#, 10, 4, DayOfWeek.Sunday) 
adjustment = TimeZoneInfo.AdjustmentRule.CreateAdjustmentRule(#01/01/1956#, Date.MaxValue.Date, delta, transitionRuleStart, transitionRuleEnd)
adjustmentList.Add(adjustment) 

' Create fictitious time zone   
imaginaryTZ = TimeZoneInfo.CreateCustomTimeZone("Fictitious Standard Time", New TimeSpan(-9, 0, 0), _
                "(GMT-09:00) Fictitious Time", "Fictitious Standard Time", _
                "Fictitious Daylight Time", adjustmentList.ToArray())

Commenti

Questo metodo crea una regola a data fissa (vale a dire un cambiamento di ora che si verifica in un giorno specifico di un determinato mese).This method creates a fixed-date rule (that is, a time change that occurs on a specific day of a specific month). Ad esempio, un cambiamento di ora che si verifica sempre il 28 ottobre segue una regola a data fissa.For example, a time change that always occurs on October 28 follows a fixed-date rule.

Per la transizione dall'ora solare all'ora legale, il timeOfDay argomento rappresenta il tempo di transizione in ora solare del fuso orario.For transitions from standard time to daylight saving time, the timeOfDay argument represents the time of the transition in the time zone's standard time. Per la transizione dall'ora legale all'ora solare, rappresenta il momento della transizione nell'ora legale del fuso orario.For transitions from daylight saving time to standard time, it represents the time of the transition in the time zone's daylight saving time. Si noti che questo è un DateTime valore cui anno, mese e i valori delle date deve tutti uguali a 1.Note that this is a DateTime value whose year, month, and date values must all equal 1.

Si applica a