/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.time.* ;
import java.time.format.* ;
import java.time.temporal.* ;
import java.time.chrono.* ;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
 
	    OffsetDateTime start = OffsetDateTime.parse( "2019-10-25T00:00:00-07:00" );
	    OffsetDateTime stop = start.plusDays( 1 ) ;
 
	    System.out.println( "start.toString(): " + start ) ;
	    System.out.println( "stop.toString(): " + stop ) ;
 
	    System.out.println(
	    	OffsetDateTime
            .parse( "2019-10-25T00:00:00-07:00" )
            .toInstant()
            .toString() 
	    );
 
	    ZoneId z = ZoneId.of( "Asia/Kuala_Lumpur" ) ;
	    LocalDate ld = LocalDate.parse( "2019-10-25" ) ;
	    ZonedDateTime zdtStart = ld.atStartOfDay( z ) ;
	    ZonedDateTime zdtStop = zdtStart.plusDays( 1 ) ;
 
	    Instant utcStart = zdtStart.toInstant() ;
	    Instant utcStop = zdtStop.toInstant() ;
 
	    long secondsSinceEpochStart = utcStart.getEpochSecond() ;
	    long secondsSinceEpochStop = utcStop.getEpochSecond() ;
 
	    System.out.println( "zdtStart/zdtStop: " + zdtStart + "/" + zdtStop ) ;
	    System.out.println( "utcStart/utcStop: " + utcStart + "/" + utcStop ) ;
	    System.out.println( "secondsSinceEpochStart/secondsSinceEpochStop: " + secondsSinceEpochStart + "/" + secondsSinceEpochStop ) ;
 
	}
}

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