java - Convert 9 Apr 2014 20:36:13 GMT to France timezone 9 Apr 2014 21:36:13 CEST -


i need convert 9 apr 2014 20:36:13 gmt france timezone 9 apr 2014 21:36:13 cest.

i come across function unable adapt code.

long ts = system.currenttimemillis();         date localtime = new date(ts);          string format = "dd mmmm yyyy hh:mm";         simpledateformat sdf = new simpledateformat(format);          // convert local time utc (works fine)         sdf.settimezone(timezone.gettimezone("gmt"));         date gmttime = new date(sdf.format(localtime));         system.out.println("local:" + localtime.tostring() + "," + localtime.gettime() + " --> utc time:"                 + gmttime.tostring() + "," + gmttime.gettime());          // **** code **** end ****          // convert utc local time         date fromgmt = new date(gmttime.gettime() + timezone.getdefault().getoffset(localtime.gettime()));         system.out.println("utc time:" + gmttime.tostring() + "," + gmttime.gettime() + " --> local:"                 + fromgmt.tostring() + "-" + fromgmt.gettime());

any idea please.

the answer meno hochschild correct.

joda-time

using joda-time 2.3 library makes work easier.

string input = "9 apr 2014 20:36:13 gmt"; datetimeformatter formatter = datetimeformat.forpattern( "d mmm yyyy hh:mm:ss z" ).withlocale( locale.english ); datetimezone timezoneparis = datetimezone.forid( "europe/paris" ); datetime datetime = formatter.withzone( timezoneparis ).parsedatetime( input ); datetime datetimeutc = datetime.withzone( datetimezone.utc ); string output = formatter.withzone( timezoneparis ).print( datetime );

dump console…

system.out.println( "input: " + input ); system.out.println( "datetime: " + datetime ); system.out.println( "datetimeutc: " + datetimeutc ); system.out.println( "output: " + output );

when run…

input: 9 apr 2014 20:36:13 gmt datetime: 2014-04-09t22:36:13.000+02:00 datetimeutc: 2014-04-09t20:36:13.000z output: 9 apr 2014 22:36:13 cest

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