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DateTime.CompareTo() Method in C#
The DateTime.CompareTo() method in C# is used to compare the value of this instance to a specified DateTime value.
Syntax
Following is the syntax −
public int CompareTo (DateTime val);
Above, Val is the date to be compared.
It returns an integer value,
- <0 − If this instance is earlier than Val
- 0 − If this instance is the same as Val
- >0 − If this instance is later than Val
Example
Let us now see an example to implement the DateTime.CompareTo() method −
using System;
public class Demo {
public static void Main(){
DateTime date1 = new DateTime(2019, 05, 20, 6, 20, 40);
DateTime date2 = new DateTime(2019, 05, 20, 6, 20, 40);
Console.WriteLine("DateTime 1 = {0:dd} {0:y}, {0:hh}:{0:mm}:{0:ss} ", date1);
Console.WriteLine("DateTime 2 = {0:dd} {0:y}, {0:hh}:{0:mm}:{0:ss} ", date2);
int res = date1.CompareTo(date2);
// returns equal to 0 since date1 is equal to date2
Console.WriteLine(res);
}
}Output
This will produce the following output −
DateTime 1 = 20 November 2019, 06:20:40 DateTime 2 = 20 November 2019, 06:20:40 0
Example
Let us now see another example to implement the DateTime.CompareTo() method −
using System;
public class Demo {
public static void Main(){
DateTime date1 = new DateTime(2019, 08, 20, 6, 20, 40);
DateTime date2 = new DateTime(2019, 05, 20, 6, 20, 40);
Console.WriteLine("DateTime 1 = {0:dd} {0:y}, {0:hh}:{0:mm}:{0:ss} ", date1);
Console.WriteLine("DateTime 2 = {0:dd} {0:y}, {0:hh}:{0:mm}:{0:ss} ", date2);
int res = date1.CompareTo(date2);
// returns >0 since date1 is later than date2
Console.WriteLine(res);
}
}Output
This will produce the following output −
DateTime 1 = 20 August 2019, 06:20:40 DateTime 2 = 20 May 2019, 06:20:40 1
Updated on: 07-Nov-2019
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