距离某个时刻还有几小时

以一天中的时刻为单位的倒计时索引，跨天自动顺延到下一次。

00:00–00:59

01:00–01:59

02:00–02:59

03:00–03:59

04:00–04:59

05:00–05:59

06:00–06:59

07:00–07:59

08:00–08:59

09:00–09:59

10:00–10:59

11:00–11:59

12:00–12:59

13:00–13:59

14:00–14:59

15:00–15:59

16:00–16:59

17:00–17:59

18:00–18:59

19:00–19:59

20:00–20:59

21:00–21:59

22:00–22:59

23:00–23:59