TimeZone Converter 1

import java.time.*;
import java.util.Date;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
//BST - UK time - I we run this code in BAT SAP CPI we should get UK BST time
ZoneId defaultZoneId = ZoneId.systemDefault();
println("System Default TimeZone : " + defaultZoneId);
//Date date = new Date("2018-08-19");//YYYY-MM-DDTHH:mm:ss.SSSZ //
//DateFormat.parse(String s)
DateFormat df = new SimpleDateFormat ("yyyy-MM-dd HH:mm:ss.SSS");
Date d1 = df.parse("2018-08-19 22:09:25.100");
//1. Convert Date -> Instant
Instant instant = d1.toInstant();
//println("instant : " + instant); //Zone : UTC+0
//ZoneId UKZoneId = ZoneId.of("Europe/London");
ZoneId NZZoneId = ZoneId.of("NZ");
//2. Instant + system default time zone + toLocalDate() = LocalDate
LocalDate localDate = instant.atZone(NZZoneId).toLocalDate();
//LocalDate localDate = d1.toLocalDate();
println("localDate : " + localDate);
//3. Instant + system default time zone + toLocalDateTime() = LocalDateTime
LocalDateTime localDateTime = instant.atZone(NZZoneId).toLocalDateTime();
println("localDateTime : " + localDateTime);
//4. Instant + system default time zone = ZonedDateTime
ZonedDateTime zonedDateTime = instant.atZone(NZZoneId);
println("zonedDateTime : " + zonedDateTime);