OffsetDateTime minusNanos() method in Java with examples

The minusNanos() method of OffsetDateTime class in Java returns a copy of this OffsetDateTime with the specified number of nano-seconds subtracted from the parsed date and time.

Syntax:

public OffsetDateTime minusNanos(long nano-seconds)

Parameter: This method accepts a single parameter nano-seconds which specifies the nano-seconds to be subtracted from the parsed date. It can be negative also, in that case, it adds the number of nanoseconds to it.

Return Value: It returns an OffsetDateTime based on this date-time with the nano-seconds subtracted and not null.

Exceptions: The program throws a DateTimeException when it exceeds the supported data and time range.



Below programs illustrate the minusNanos() method:

Program 1:

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// Java program to demonstrate the minusNanos() method
  
import java.time.OffsetDateTime;
import java.time.ZonedDateTime;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Parses the date1
        OffsetDateTime date1
            = OffsetDateTime
                  .parse("2018-12-12T13:30:30+05:00");
  
        // Prints dates
        System.out.println("Date1: " + date1);
  
        // Subtracts the number of nano-seconds
        System.out.println("Date1 after subtracting nano-seconds: "
                           + date1.minusNanos(-120));
    }
}

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Output:

Date1: 2018-12-12T13:30:30+05:00
Date1 after subtracting nano-seconds: 2018-12-12T13:30:30.000000120+05:00

Program 2:

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// Java program to demonstrate the minusNanos() method
  
import java.time.OffsetDateTime;
import java.time.ZonedDateTime;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Parses the date1
        OffsetDateTime date1
            = OffsetDateTime
                  .parse("2018-12-12T13:30:30+05:00");
  
        // Prints dates
        System.out.println("Date1: " + date1);
  
        // Subtracts the number of nano-seconds
        System.out.println("Date1 after subtracting nano-seconds: "
                           + date1.minusNanos(140));
    }
}

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Output:

Date1: 2018-12-12T13:30:30+05:00
Date1 after subtracting nano-seconds: 2018-12-12T13:30:29.999999860+05:00

Reference: https://docs.oracle.com/javase/10/docs/api/java/time/OffsetDateTime.html#minusNanos(long)

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