DateTimeOffset.Equals Method (DateTimeOffset, DateTimeOffset)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Determines whether two specified DateTimeOffset objects represent the same point in time.
Assembly: mscorlib (in mscorlib.dll)
'Declaration Public Shared Function Equals ( _ first As DateTimeOffset, _ second As DateTimeOffset _ ) As Boolean
Parameters
- first
- Type: System.DateTimeOffset
The first object to compare.
- second
- Type: System.DateTimeOffset
The second object to compare.
Return Value
Type: System.Booleantrue if the two DateTimeOffset objects have the same UtcDateTime value; otherwise, false.
Before it performs the comparison, this method converts both DateTimeOffset objects to Coordinated Universal Time (UTC). The method is equivalent to the following:
In other words, the Equals(DateTimeOffset, DateTimeOffset) method determines whether the two DateTimeOffset objects represent a single point in time. It directly compares neither dates and times nor offsets. To determine whether two DateTimeOffset objects represent the same time and have the same offset value, use the EqualsExact method.
The following example illustrates calls to the Equals(DateTimeOffset, DateTimeOffset) method to test various pairs of DateTimeOffset objects for equality.
Dim firstTime As New DateTimeOffset(#11/15/2007 11:35:00 AM#, _ DateTimeOffset.Now.Offset) Dim secondTime As DateTimeOffset = firstTime outputBlock.Text += String.Format("{0} = {1}: {2}", _ firstTime, secondTime, _ DateTimeOffset.Equals(firstTime, secondTime)) + vbCrLf ' The value of firstTime remains unchanged secondTime = New DateTimeOffset(firstTime.DateTime, _ TimeSpan.FromHours(firstTime.Offset.Hours + 1)) outputBlock.Text += String.Format("{0} = {1}: {2}", _ firstTime, secondTime, _ DateTimeOffset.Equals(firstTime, secondTime)) + vbCrLf ' value of firstTime remains unchanged secondTime = New DateTimeOffset(firstTime.DateTime + TimeSpan.FromHours(1), _ TimeSpan.FromHours(firstTime.Offset.Hours + 1)) outputBlock.Text += String.Format("{0} = {1}: {2}", _ firstTime, secondTime, _ DateTimeOffset.Equals(firstTime, secondTime)) + vbCrLf ' The example produces the following output: ' 11/15/2007 11:35:00 AM -07:00 = 11/15/2007 11:35:00 AM -07:00: True ' 11/15/2007 11:35:00 AM -07:00 = 11/15/2007 11:35:00 AM -06:00: False ' 11/15/2007 11:35:00 AM -07:00 = 11/15/2007 12:35:00 PM -06:00: True