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DateTimeOffset.ToUnixTimeSeconds() Method in C#
  • Last Updated : 19 Mar, 2019

DateTimeOffset.ToUnixTimeSeconds Method is used to return the number of seconds that have elapsed since 1970-01-01T00:00:00Z. Before returning the Unix time, this method will convert the current instance to the UTC. And also, it will return a negative value for the date and time values before 1970-01-01T00:00:00Z.

Syntax: public long ToUnixTimeSeconds ();

Return Value: This method return the number of seconds that have elapsed since 1970-01-01T00:00:00Z.

Below programs illustrate the use of DateTimeOffset.ToUnixTimeSeconds() Method:

Example 1:



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// C# program to demonstrate the
// DateTimeOffset.ToUnixTimeMilliseconds()
// Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        // creating object of  DateTimeOffset
        DateTimeOffset offset = new DateTimeOffset(2017,
                6, 1, 7, 55, 0, new TimeSpan(-5, 0, 0));
  
        // Returns the number of seconds
        // that have elapsed since 1970-01-01T00:00:00Z.
        // instance using ToUnixTimeSeconds() method
        long value = offset.ToUnixTimeSeconds();
  
        // Display the time
        Console.WriteLine("Returns the number of"+
                         " seconds : {0}", value);
    }
}

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Output:

Returns the number of seconds : 1496321700

Example 2:

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// C# program to demonstrate the
// DateTimeOffset.ToUnixTimeSeconds()
// Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        // creating object of  DateTimeOffset
        DateTimeOffset offset = new DateTimeOffset(2017,
                6, 1, 7, 55, 0, new TimeSpan(-5, 0, 0));
  
        // Returns the number of seconds
        // that have elapsed since 1970-01-01T00:00:00Z.
        // instance using ToUnixTimeSeconds() method
        long value = offset.ToUnixTimeSeconds();
  
        // Display the time
        Console.WriteLine("Returns the number of"+
                         " seconds : {0}", value);
    }
}

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Output:

Returns the number of seconds : 1496321700

Reference:




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