TimeZoneInfo.TransitionTime.TimeOfDay Propriété
Définition
Important
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Obtient l’heure, les minutes et les secondes auxquelles le changement d’heure se produit.
public:
property DateTime TimeOfDay { DateTime get(); };public DateTime TimeOfDay { get; }member this.TimeOfDay : DateTimePublic ReadOnly Property TimeOfDay As DateTimeValeur de propriété
Heure de la journée à laquelle le changement d’heure se produit.
Exemples
L’exemple suivant énumère les fuseaux horaires trouvés sur l’ordinateur local et affiche les informations de temps de transition pour ces fuseaux horaires qui ont des règles d’ajustement. Les informations d’heure incluent l’heure de jour à laquelle le changement de temps se produit.
private enum WeekOfMonth
{
First = 1,
Second = 2,
Third = 3,
Fourth = 4,
Last = 5,
}
public void GetAllTransitionTimes()
{
ReadOnlyCollection<TimeZoneInfo> timeZones = TimeZoneInfo.GetSystemTimeZones();
DateTimeFormatInfo dateInfo = CultureInfo.CurrentCulture.DateTimeFormat;
foreach (TimeZoneInfo zone in timeZones)
{
Console.WriteLine("{0} transition time information:", zone.StandardName);
TimeZoneInfo.AdjustmentRule[] adjustmentRules= zone.GetAdjustmentRules();
// Indicate that time zone has no adjustment rules
if (adjustmentRules.Length == 0)
{
Console.WriteLine(" No adjustment rules defined.");
}
else
{
// Iterate adjustment rules
foreach (TimeZoneInfo.AdjustmentRule adjustmentRule in adjustmentRules)
{
Console.WriteLine(" Adjustment rule from {0:d} to {1:d}:",
adjustmentRule.DateStart,
adjustmentRule.DateEnd);
// Get start of transition
TimeZoneInfo.TransitionTime daylightStart = adjustmentRule.DaylightTransitionStart;
// Display information on fixed date rule
if (! daylightStart.IsFixedDateRule)
Console.WriteLine(" Begins at {0:t} on the {1} {2} of {3}.",
daylightStart.TimeOfDay,
((WeekOfMonth)daylightStart.Week).ToString(),
daylightStart.DayOfWeek.ToString(),
dateInfo.GetMonthName(daylightStart.Month));
// Display information on floating date rule
else
Console.WriteLine(" Begins at {0:t} on the {1} {2} of {3}.",
daylightStart.TimeOfDay,
((WeekOfMonth)daylightStart.Week).ToString(),
daylightStart.DayOfWeek.ToString(),
dateInfo.GetMonthName(daylightStart.Month));
// Get end of transition
TimeZoneInfo.TransitionTime daylightEnd = adjustmentRule.DaylightTransitionEnd;
// Display information on fixed date rule
if (! daylightEnd.IsFixedDateRule)
Console.WriteLine(" Ends at {0:t} on the {1} {2} of {3}.",
daylightEnd.TimeOfDay,
((WeekOfMonth)daylightEnd.Week).ToString(),
daylightEnd.DayOfWeek.ToString(),
dateInfo.GetMonthName(daylightEnd.Month));
// Display information on floating date rule
else
Console.WriteLine(" Ends at {0:t} on the {1} {2} of {3}.",
daylightStart.TimeOfDay,
((WeekOfMonth)daylightStart.Week).ToString(),
daylightStart.DayOfWeek.ToString(),
dateInfo.GetMonthName(daylightStart.Month));
}
}
}
}
type WeekOfMonth =
| First = 1
| Second = 2
| Third = 3
| Fourth = 4
| Last = 5
let getAllTransitionTimes () =
let timeZones = TimeZoneInfo.GetSystemTimeZones()
let dateInfo = CultureInfo.CurrentCulture.DateTimeFormat
for zone in timeZones do
printfn $"{zone.StandardName} transition time information:"
let adjustmentRules= zone.GetAdjustmentRules()
// Indicate that time zone has no adjustment rules
if adjustmentRules.Length = 0 then
printfn " No adjustment rules defined."
else
// Iterate adjustment rules
for adjustmentRule in adjustmentRules do
printfn $" Adjustment rule from {adjustmentRule.DateStart:d} to {adjustmentRule.DateEnd:d}:"
// Get start of transition
let daylightStart = adjustmentRule.DaylightTransitionStart
// Display information on fixed date rule
if not daylightStart.IsFixedDateRule then
printfn $" Begins at {daylightStart.TimeOfDay:t} on the {enum<WeekOfMonth> daylightStart.Week} {daylightStart.DayOfWeek} of {dateInfo.GetMonthName daylightStart.Month}."
// Display information on floating date rule
else
printfn $" Begins at {daylightStart.TimeOfDay:t} on the {enum<WeekOfMonth> daylightStart.Week} {daylightStart.DayOfWeek} of {dateInfo.GetMonthName daylightStart.Month}."
// Get end of transition
let daylightEnd = adjustmentRule.DaylightTransitionEnd
// Display information on fixed date rule
if not daylightEnd.IsFixedDateRule then
printfn $" Ends at {daylightEnd.TimeOfDay:t} on the {enum<WeekOfMonth> daylightEnd.Week} {daylightEnd.DayOfWeek} of {dateInfo.GetMonthName daylightEnd.Month}."
// Display information on floating date rule
else
printfn $" Ends at {daylightStart.TimeOfDay:t} on the {enum<WeekOfMonth> daylightStart.Week} {daylightStart.DayOfWeek} of {dateInfo.GetMonthName daylightStart.Month}."
Private Enum WeekOfMonth As Integer
First = 1
Second = 2
Third = 3
Fourth = 4
Last = 5
End Enum
Sub GetAllTransitionTimes()
Dim timeZones As ReadOnlyCollection(Of TimeZoneInfo) = TimeZoneInfo.GetSystemTimeZones()
For Each zone As TimeZoneInfo In timeZones
Console.WriteLine("{0} transition time information:", zone.StandardName)
Dim adjustmentRules() As TimeZoneInfo.AdjustmentRule = zone.GetAdjustmentRules()
' Indicate that time zone has no adjustment rules
If adjustmentRules.Length = 0 Then
Console.WriteLine(" No adjustment rules defined.")
Else
' Iterate adjustment rules
For Each adjustmentRule As TimeZoneInfo.AdjustmentRule in adjustmentRules
Console.WriteLine(" Adjustment rule from {0:d} to {1:d}:", _
adjustmentRule.DateStart, _
adjustmentRule.DateEnd)
' Get start of transition
Dim daylightStart As TimeZoneInfo.TransitionTime = adjustmentRule.DaylightTransitionStart
' Display information on fixed date rule
If Not daylightStart.IsFixedDateRule Then
Console.WriteLine(" Begins at {0:t} on the {1} {2} of {3}.", _
daylightStart.TimeOfDay, _
CType(daylightStart.Week, WeekOfMonth).ToString(), _
daylightStart.DayOfWeek.ToString(), _
MonthName(daylightStart.Month))
' Display information on floating date rule
Else
Console.WriteLine(" Begins at {0:t} on the {1} {2} of {3}.", _
daylightStart.TimeOfDay, _
CType(daylightStart.Week, WeekOfMonth).ToString(), _
daylightStart.DayOfWeek.ToString(), _
MonthName(daylightStart.Month))
End If
' Get end of transition
Dim daylightEnd As TimeZoneInfo.TransitionTime = adjustmentRule.DaylightTransitionEnd
' Display information on fixed date rule
If Not daylightEnd.IsFixedDateRule Then
Console.WriteLine(" Ends at {0:t} on the {1} {2} of {3}.", _
daylightEnd.TimeOfDay, _
CType(daylightEnd.Week, WeekOfMonth).ToString(), _
daylightEnd.DayOfWeek.ToString(), _
MonthName(daylightEnd.Month))
' Display information on floating date rule
Else
Console.WriteLine(" Ends at {0:t} on the {1} {2} of {3}.", _
daylightStart.TimeOfDay, _
CType(daylightStart.Week, WeekOfMonth).ToString(), _
daylightStart.DayOfWeek.ToString(), _
MonthName(daylightStart.Month))
End If
Next
End If
Next
End Sub
Remarques
Pour les transitions de l’heure standard à l’heure d’été, la TimeOfDay valeur représente l’heure de la transition dans l’heure standard du fuseau horaire. Pour les transitions entre l’heure d’été et l’heure d’été, elle représente l’heure de transition dans l’heure d’été du fuseau horaire.
La TimeOfDay propriété définit uniquement l’heure d’une modification d’heure, mais pas sa date. La date est déterminée par les propriétés et Day les propriétés pour les Month modifications de règle fixe, et par les MonthWeekpropriétés , et DayOfWeek les propriétés pour les modifications de règle flottante. Le composant de date de cette DateTime valeur est ignoré ; la valeur de l’année, du mois et du jour est toujours 1.
La TimeOfDay propriété est utilisée pour les transitions à date fixe et à date flottante.