ZonedDateTime to UTC with offset applied?

Question

I am using Java 8
This is what my ZonedDateTime looks like

2013-07-10T02:52:49+12:00

I get this value as <

Answer 1

It looks like you need to convert to the desired time zone (UTC) before sending it to the formatter.

z1.withZoneSameInstant( ZoneId.of("UTC") )
  .format( DateTimeFormatter.ISO_OFFSET_DATE_TIME )

should give you something like 2018-08-28T17:41:38.213Z