How to convert ZoneDateTime to ISO8601 ?

      TimeZone and Date Conversion using Java 8 APIs:

       ZoneDateTime to ISO8601  :

-------------------------------- ConvertUtilTest.java-----------------------

import java.sql.Timestamp;

import java.time.ZoneId;

import java.time.ZonedDateTime;

import java.util.TimeZone;

public class ConvertUtilTest {

       public static void main(String[] args) {

              ConvertUtilTest convertUtilTest = new ConvertUtilTest();

             

              convertUtilTest.convertZonedDateTimeToIso8601();

                           

       }

      

       public void convertZonedDateTimeToIso8601() {

              String currentTimeZone = "Asia/Shanghai";

              TimeZone timeZone = TimeZone.getTimeZone(currentTimeZone);

              // If CurrentTimeZone is provided invalid value then

              // TimeZone.getTimeZone automatically convert it to GMT timeZone

              ZoneId currentTimeZoneId = timeZone.toZoneId();

              ZonedDateTime zonedDateTime = ZonedDateTime.of(2017, 02, 06, 10, 55, 50, 0, currentTimeZoneId);

              String result = ConvertDate.convertZonedDateTimeToIso8601(zonedDateTime, "Asia/Tokyo");

              System.out.println(" convertZonedDateTimeToIso8601  :  "+result);

       }

}

--------------------------- ConvertDate.java---------------

public class ConvertDate {

      

       public static String convertZonedDateTimeToIso8601(ZonedDateTime zonedDateTime, String currentTimeZone) {

              String isoTime = null;

              if (zonedDateTime != null) {

                     TimeZone timeZone = TimeZone.getTimeZone(currentTimeZone);

                     ZoneId currentTimeZoneId = timeZone.toZoneId();

                    

                     if (currentTimeZone != null) {

                           isoTime = zonedDateTime.withZoneSameInstant(currentTimeZoneId).format(DateTimeFormatter.ISO_OFFSET_DATE_TIME);

                     }

              }

              return isoTime;

       }

 }

Output :

convertZonedDateTimeToIso8601  :  2017-02-06T11:55:50+09:00

More Conversion:

Convert ISO8601 to GMT Timestamp?

Convert GMT Timestamp to ISO8601 ?

Convet ZoneDateTime from ISO8601 ?