Extract timezone from ISO8601 date time string

Question

How to extract time zone from ISO-8601 date string in Java 8.

e.g:

   String timestamp1 = "2014-02-15T01:02:03Z" ;
   String timestamp2 = "2017-10-27T16:22:27.605-05:30";

Thanks.

Answer 1

Use ZonedDateTime:

ZonedDateTime.parse("2017-10-27T16:22:27.605-05:30").getZone()

to get an instance of ZoneId.

Alternatively you can use getOffset() to obtain ZoneOffset,which is more handy if you need to access the timezone offset in a numeric form.