java - ZonedDateTime to UTC with offset applied? -

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i using java 8
zoneddatetime looks 

2013-07-10t02:52:49+12:00

i value 

z1.format(datetimeformatter.iso_offset_date_time)

where z1 zoneddatetime.

i wanted convert value 2013-07-10t14:52:49

how can that?

is want? converts zoneddatetime localdatetime given zoneid converting zoneddatetime instant before. 

localdatetime localdatetime = localdatetime.ofinstant(z1.toinstant(), zoneid.of("utc"));

or maybe want users system-timezone instead of hardcoded utc:

localdatetime localdatetime = localdatetime.ofinstant(z1.toinstant(), zoneid.systemdefault());

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