代码

static LocalDateTime calculateArrivalAtNY(LocalDateTime bj, int h, int m) {

		ZonedDateTime zbj = bj.atZone(ZoneId.of("Asia/Shanghai"));

		ZonedDateTime zdt = zbj.plusHours(h).plusMinutes(m);

		ZonedDateTime zny = zdt.withZoneSameInstant(ZoneId.of("America/New_York"));

		bj = zny.toLocalDateTime();

		return bj;

	}