all hours

基本解释

I would literally be sitting down till all hours -- typical new-writer syndrome.
我所有的时间都坐在那里——典型的新作家综合症。
They can arrive at all hours of the day or night, and woe unto to the poet who is not ready to receive them.
他们能在白天或晚上的任何时间到达，给那些还没有准备好接受他们的诗人们带来痛苦。
Productive people have a good sense of their daily rhythm, and they allow for this when planning their day. They recognize that not all hours are created equal.
高效率的人十分了解自己的高峰时刻，同时他们以此来安排他们一天的工作。他们承认并不是同等对待一天中的每个小时。

But he points out that technology has also made new music available to people all over the world twenty-four hours a day.
All your TA's have either already have their extra office hours, or there are some that will be going on tonight or tomorrow, so keep those in mind as your finishing up your studying for the exam.
你们的助教们有的已经做过额外的答疑，而有的会在今天晚上或者明天答疑，因此在你复习准备,考试的时候不要忘了这些。
麻省理工公开课 - 化学原理课程节选
I would have class maybe 8 to 9 hours like all in a row
我要连续上八至九小时的课，
耶鲁的忙碌生活 - SpeakingMax英语口语达人

Military aircraft land at and take off from an airstrip there at all hours.
NEWYORKER: The Taliban’s Opium War