System.DateTime.AddMilliseconds Method

Returns a new DateTime that adds the specified number of milliseconds to the value of this instance.


public DateTime AddMilliseconds (double value)


A number of whole and fractional milliseconds. The value parameter can be negative or positive. Note that this value is rounded to the nearest integer.


An object whose value is the sum of the date and time represented by this instance and the number of milliseconds represented by value.


ArgumentOutOfRangeExceptionThe resulting DateTime is less than DateTime.MinValue or greater than DateTime.MaxValue.


This method does not change the value of this DateTime. Instead, it returns a new DateTime whose value is the result of this operation.

The fractional part of value is the fractional part of a millisecond. For example, 4.5 is equivalent to 4 milliseconds and 5000 ticks, where one millisecond = 10000 ticks.

The value parameter is rounded to the nearest integer.


Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0,,