Moment moment = Moment.of(2021, 12, 31, 23, 59, 59, 999); Moment now = Moment.nowInSystemTime(); Moment futureDate = now.plus(Duration.days(10)); Moment date1 = Moment.of(2022, 1, 1); Moment date2 = Moment.of(2022, 1, 10); long daysBetween = date1.until(date2, Duration.ofDays(1)).getPartialAmount(Duration.Unit.DAYS); Moment utcMoment = Moment.nowInSystemTime().atUTC(); TimezoneOffset offset = Timezone.of("Asia/Shanghai").getOffset(utcMoment); Moment shanghaiMoment = utcMoment.plus(offset); Moment moment = Moment.nowInSystemTime(); String formattedDate = formatter.format(moment);