# DateTime.Equality(DateTime, DateTime)DateTime.Equality(DateTime, DateTime)DateTime.Equality(DateTime, DateTime)DateTime.Equality(DateTime, DateTime) Operator

## 定義

DateTime の 2 つの指定したインスタンスが等しいかどうかを判断します。Determines whether two specified instances of DateTime are equal.

``````public:
static bool operator ==(DateTime d1, DateTime d2);``````
``public static bool operator == (DateTime d1, DateTime d2);``
``static member ( = ) : DateTime * DateTime -> bool``
``Public Shared Operator == (d1 As DateTime, d2 As DateTime) As Boolean``

#### パラメーター

d1
DateTime DateTime DateTime DateTime

d2
DateTime DateTime DateTime DateTime

#### 戻り値

`true``d1` が同じ日付と時刻を表す場合は `d2`。それ以外の場合は `false``true` if `d1` and `d2` represent the same date and time; otherwise, `false`.

## 例

``````System::DateTime april19( 2001, 4, 19 );
System::DateTime otherDate( 1991, 6, 5 );

// areEqual gets false.
bool areEqual = april19 == otherDate;

otherDate = DateTime( 2001, 4, 19 );
// areEqual gets true.
areEqual = april19 == otherDate;
``````
``````System.DateTime april19 = new DateTime(2001, 4, 19);
System.DateTime otherDate = new DateTime(1991, 6, 5);

// areEqual gets false.
bool areEqual = april19 == otherDate;

otherDate = new DateTime(2001, 4, 19);
// areEqual gets true.
areEqual = april19 == otherDate;
``````
``````Dim april19 As New DateTime(2001, 4, 19)
Dim otherDate As New DateTime(1991, 6, 5)

Dim areEqual As Boolean
' areEqual gets false.
areEqual = DateTime.op_Equality(april19, otherDate)

otherDate = New DateTime(2001, 4, 19)
' areEqual gets true.
areEqual = System.DateTime.op_Equality(april19, otherDate)
``````

## 注釈

この演算子の同等の方法は次のようになります。DateTime.Equals(Object)The equivalent method for this operator is DateTime.Equals(Object)