How to get the time zone from a datetime string

Question

How can I get the time zone from a datetime string with this format 2013-08-15T13:00:00-07:00?

Answer 1

You could take the time offset from Andreas answer and use below sinppet to get TimeZone object.

TimeZone tmzo = TimeZone.getTimeZone("GMT"+offset);
System.out.println(tmzo.getID());

Answer 2

if Java 8, you can parse directly with ISO_ZONED_DATE_TIME format

String input = "2013-08-15T13:00:00-07:00";                             
ZonedDateTime zDateTime = ZonedDateTime.parse(input, DateTimeFormatter.ISO_ZONED_DATE_TIME);            
ZoneId zone = zDateTime.getZone();