Calendar.ToDateTime Method
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When overridden in a derived class, returns a DateTime that is set to the specified date and time.
| ToDateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32) |
Returns a DateTime that is set to the specified date and time in the current era. |
| ToDateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Int32) |
When overridden in a derived class, returns a DateTime that is set to the specified date and time in the specified era. |
- Source:
- Calendar.cs
- Source:
- Calendar.cs
- Source:
- Calendar.cs
Returns a DateTime that is set to the specified date and time in the current era.
public:
virtual DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond);public virtual DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond);abstract member ToDateTime : int * int * int * int * int * int * int -> DateTime
override this.ToDateTime : int * int * int * int * int * int * int -> DateTimePublic Overridable Function ToDateTime (year As Integer, month As Integer, day As Integer, hour As Integer, minute As Integer, second As Integer, millisecond As Integer) As DateTimeParameters
- year
- Int32
An integer that represents the year.
- month
- Int32
A positive integer that represents the month.
- day
- Int32
A positive integer that represents the day.
- hour
- Int32
An integer from 0 to 23 that represents the hour.
- minute
- Int32
An integer from 0 to 59 that represents the minute.
- second
- Int32
An integer from 0 to 59 that represents the second.
- millisecond
- Int32
An integer from 0 to 999 that represents the millisecond.
Returns
The DateTime that is set to the specified date and time in the current era.
Exceptions
year is outside the range supported by the calendar.
-or-
month is outside the range supported by the calendar.
-or-
day is outside the range supported by the calendar.
-or-
hour is less than zero or greater than 23.
-or-
minute is less than zero or greater than 59.
-or-
second is less than zero or greater than 59.
-or-
millisecond is less than zero or greater than 999.
Remarks
This method returns a date and time based on the current era of a particular calendar. For the JapaneseCalendar and JapaneseLunisolarCalendar, which support multiple eras based on the reign of the emperor, calling this method can produce an unintended date when an era changes. When instantiating a date using either of these calendars, we recommend that you call the JapaneseCalendar.ToDateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Int32) or JapaneseLunisolarCalendar.ToDateTime(Int32,Int32,Int32,Int32,Int32,Int32,Int32,Int32) method and explicitly specify an era.
See also
Applies to
.NET 9 and other versions
| Product | Versions |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1 |
| UWP | 10.0 |
- Source:
- Calendar.cs
- Source:
- Calendar.cs
- Source:
- Calendar.cs
When overridden in a derived class, returns a DateTime that is set to the specified date and time in the specified era.
public:
abstract DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int era);public abstract DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int era);abstract member ToDateTime : int * int * int * int * int * int * int * int -> DateTimePublic MustOverride Function ToDateTime (year As Integer, month As Integer, day As Integer, hour As Integer, minute As Integer, second As Integer, millisecond As Integer, era As Integer) As DateTimeParameters
- year
- Int32
An integer that represents the year.
- month
- Int32
A positive integer that represents the month.
- day
- Int32
A positive integer that represents the day.
- hour
- Int32
An integer from 0 to 23 that represents the hour.
- minute
- Int32
An integer from 0 to 59 that represents the minute.
- second
- Int32
An integer from 0 to 59 that represents the second.
- millisecond
- Int32
An integer from 0 to 999 that represents the millisecond.
- era
- Int32
An integer that represents the era.
Returns
The DateTime that is set to the specified date and time in the current era.
Exceptions
year is outside the range supported by the calendar.
-or-
month is outside the range supported by the calendar.
-or-
day is outside the range supported by the calendar.
-or-
hour is less than zero or greater than 23.
-or-
minute is less than zero or greater than 59.
-or-
second is less than zero or greater than 59.
-or-
millisecond is less than zero or greater than 999.
-or-
era is outside the range supported by the calendar.
Remarks
The ToDateTime method is useful because it can convert any date in the current calendar to a Gregorian calendar date. The Gregorian date can subsequently be used, for example, to compare dates in different calendars or create an equivalent date in a particular calendar.
Notes to Implementers
The derived class must support CurrentEra when it is passed as the era parameter. One way to support CurrentEra is by replacing it with the value stored in the first element of the Eras property array, which is the value for the current era of the calendar.
See also
Applies to
.NET 9 and other versions
| Product | Versions |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1 |
| UWP | 10.0 |
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