java - Convert DateTimeZone to UTC Offset -

java - Convert DateTimeZone to UTC Offset -

given datetimezone, can name , id of timezone this:

class="lang-java prettyprint-override">datetimezone timezone = new datetimezone("america/chicago"); // prints "america/chicago" system.out.println(timezone.getid()); // prints "cdt" (since daylight savings time now) system.out.println(timezone.getnamekey(datetimeutils.currenttimemillis())); // prints "central daylight time" system.out.println(timezone.getname(datetimeutils.currenttimemillis()));

all great, timezone utc offset. in case utc offset -05:00

how do joda-time?

a pure joda-solution looks like:

int offsetmillis = datetimezone.forid("america/chicago").getoffset(datetimeutils.currenttimemillis()); datetimezone zone = datetimezone.foroffsetmillis(offsetmillis); string utcoffset = zone.tostring(); system.out.println(utcoffset); // output: -05:00

java jodatime