DateTime.AddMinutes() Method in C# - GeeksforGeeks

18 Jan, 2019
This method is used to return a new DateTime that adds the specified number of minutes to the value of this instance.
Syntax:
public DateTime AddMinutes (double value);
Here, value is a number of whole and fractional minutes. The value parameter can be negative or positive.
Return Value: This method returns an object whose value is the sum of the date and time represented by this instance and the number of minutes represented by value.
Exception: This method will throw ArgumentOutOfRangeException if the resulting DateTime is less than MinValue or greater than MaxValue.
Below programs illustrate the use of the above-discussed method:
Example 1:
// C# program to demonstrate the// DateTime.AddMinutes(Double) Methodusing System;  class GFG {  // Main Methodpublic static void Main(){      // Creating a DateTime object    DateTime d1 = new DateTime(2018, 9,                            7, 7, 0, 0);      // Taking minutes    double[] m1 = {.01567, .06743, 12.12347,                           .89, .6666, 250.0};      foreach(double m2 in m1)    {          // using the method        Console.WriteLine("{0} + {1} minute(s) = {2}", d1,                                   m2, d1.AddMinutes(m2));    }                    }}
Output:
09/07/2018 07:00:00 + 0.01567 minute(s) = 09/07/2018 07:00:00
09/07/2018 07:00:00 + 0.06743 minute(s) = 09/07/2018 07:00:04
09/07/2018 07:00:00 + 12.12347 minute(s) = 09/07/2018 07:12:07
09/07/2018 07:00:00 + 0.89 minute(s) = 09/07/2018 07:00:53
09/07/2018 07:00:00 + 0.6666 minute(s) = 09/07/2018 07:00:39
09/07/2018 07:00:00 + 250 minute(s) = 09/07/2018 11:10:00

Example 2:
// C# program to demonstrate the// DateTime.AddMinutes(Double) Methodusing System;  class GFG {  // Main Methodpublic static void Main(){      // Creating a DateTime object    // by taking it MaxValue    DateTime d1 = DateTime.MaxValue;      // Taking minute variable    double m1 = 1.7;      // Using the Method will error as the    // resulting DateTime is greater than     // MaxValue    Console.WriteLine(d1.AddMinutes(m1));}}
Runtime Error:
Unhandled Exception:System.ArgumentOutOfRangeException: The added or subtracted value results in an un-representable DateTime.Parameter name: value
Note:
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 the value is the fractional part of a minute. For example, 7.5 is equivalent to 7 minutes, 30 seconds, 0 milliseconds, and 0 ticks.
The value parameter is rounded to the nearest millisecond.
Reference:
https://docs.microsoft.com/en-us/dotnet/api/system.datetime.addminutes?view=netframework-4.7.2
CSharp DateTime Struct
CSharp-method
C#
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