DateTimeFormatter dateTimeformatter = DateTimeFormatter.ofPattern ( "yyyy-MM-dd HH:mm:ss z" );
ZonedDateTime zoneDateTime = ZonedDateTime.parse ( "2017-05-10 12:43:04 UTC" , dateTimeformatter );
Instant instant = zoneDateTime.toInstant ();
long epochSecond = instant.getEpochSecond();
System.out.println(epochSecond);
Instant instantEpochSecond = Instant.ofEpochSecond(epochSecond);
ZonedDateTime epochZoneDateTime = ZonedDateTime.ofInstant(instantEpochSecond, ZoneOffset.UTC);
Date date = Date.from(epochZoneDateTime.toInstant());
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z");
System.out.println(sdf.format(date));
