Date from = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse("2023-04-16 17:17:00");
        Instant end = from.toInstant();
        Instant now = new Date().toInstant();

        Long day = ChronoUnit.DAYS.between(end, now);
        Long seconds = ChronoUnit.SECONDS.between(end, now);
        Long hours = ChronoUnit.HOURS.between(end, now);
        Long minutes = ChronoUnit.MINUTES.between(end, now);
       //在ChronoUnit中 还有更多其他类型的 

        System.out.println(
                "相差天数为：" + day +
                        " 小时为：" + hours +
                        " 分钟为：" + minutes +
                        " 秒为：" + seconds
        );

打印输出：

相差天数为：2 小时为：48 分钟为：2884 秒为：173062