DateTimeOffset.AddMilliseconds(Double) Method
Definition
Important
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Returns a new DateTimeOffset object that adds a specified number of milliseconds to the value of this instance.
public:
DateTimeOffset AddMilliseconds(double milliseconds);public DateTimeOffset AddMilliseconds (double milliseconds);member this.AddMilliseconds : double -> DateTimeOffsetPublic Function AddMilliseconds (milliseconds As Double) As DateTimeOffsetParameters
- milliseconds
- Double
A number of whole and fractional milliseconds. The number can be negative or positive.
Returns
An object whose value is the sum of the date and time represented by the current DateTimeOffset object and the number of whole milliseconds represented by milliseconds.
Exceptions
The resulting DateTimeOffset value is less than DateTimeOffset.MinValue.
-or-
The resulting DateTimeOffset value is greater than DateTimeOffset.MaxValue.
Remarks
The fractional part of the milliseconds parameter is the fractional part of a millisecond. For example, 4.5 is equivalent to 4 milliseconds and 5000 ticks, where one millisecond equals 10,000 ticks. However, in .NET 6 and earlier versions, milliseconds is rounded to the nearest millisecond, and all values of .5 or greater are rounded up. In .NET 7 and later versions, the full Double precision of the milliseconds parameter is used. However, due to the inherent imprecision of floating point math, the resulting precision will vary.
Note
This method returns a new DateTimeOffset object. It does not modify the value of the current object by adding milliseconds to its date and time.
Because a DateTimeOffset object does not represent the date and time in a specific time zone, the AddMilliseconds method does not consider a particular time zone's adjustment rules when it performs date and time arithmetic.
