ChronoZonedDateTime minus(TemporalAmount) method in Java with Examples

minus() method of a ChronoZonedDateTime class used to returns a copy of this date-time with the specified amount subtracted to date-time.The amount is typically Period or Duration but may be any other type implementing the TemporalAmount interface.
Syntax:

default ChronoZonedDateTime minus(TemporalAmount amountTosubtract)

Parameters: This method accepts one single parameter amountTosubtract which is the amount to subtract, It should not be null.
Return value: This method returns ChronoZonedDateTime based on this date-time with the subtraction made, not null
Exception: This method throws following Exceptions: 

• DateTimeException: if the subtraction cannot be made</li 
  
• ArithmeticException: if numeric overflow occurs

Below programs illustrate the minus() method:
Program 1:

Java

// Java program to demonstrate
// ChronoZonedDateTime.minus() method

import java.time.*;
import java.time.chrono.*;
import java.time.temporal.ChronoUnit;

public class GFG {
    public static void main(String[] args)
    {

        // create a ChronoZonedDateTime object
        ChronoZonedDateTime zonedlt
            = ZonedDateTime
                  .parse(
                      "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");

        // subtract 10 Days to ChronoZonedDateTime
        ChronoZonedDateTime value
            = zonedlt.minus(Period.ofDays(10));

        // print result
        System.out.println("ChronoZonedDateTime after"
                           + " subtracting Days:\n "
                           + value);
    }
}

Output:

ChronoZonedDateTime after subtracting Days:
 2018-11-26T19:21:12.123+05:30[Asia/Calcutta]

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/ChronoZonedDateTime.html#minus-java.time.temporal.TemporalAmount-