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DateTime::AddSeconds Method (Double)

.NET Framework (current version)
 

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

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

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public:
DateTime AddSeconds(
	double value
)

Parameters

value
Type: System::Double

A number of whole and fractional seconds. The value parameter can be negative or positive.

Return Value

Type: System::DateTime

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

Exception Condition
ArgumentOutOfRangeException

The resulting DateTime is less than MinValue or greater than 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 second. For example, 4.5 is equivalent to 4 seconds, 500 milliseconds, and 0 ticks.

The value parameter is rounded to the nearest millisecond.

The following example uses theAddSecondsmethod to add 30 seconds and the number of seconds in one day to a DateTime value. It then displays each new value and displays the difference between it and the original value. The difference is displayed both as a time span and as a number of ticks.

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No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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