Assembly: mscorlib (in mscorlib.dll)
- Type: System.TimeSpan
The time interval to add. This value can be positive or negative.
Return ValueType: System.DateTime
An object whose value is the sum of the date and time represented by this instance and the time interval represented by value.
You can use the method to add more than one kind of time interval (days, hours, minutes, seconds, or milliseconds) in a single operation. This method's behavior is identical to that of the addition operator. The DateTime structure also supports specialized addition methods (such as AddDays, AddHours, and AddMinutes) for each time interval.
The method takes into account leap years and the number of days in a month when performing date arithmetic.
This method does not change the value of this DateTime. Instead, a new DateTime is returned whose value is the result of this operation. The Kind property of the new DateTime instance is the same as that of the current instance.
The following example demonstrates the method. It calculates the day of the week that is 36 days (864 hours) from this moment.