主要有两种含义：一是
Microsoft office Excel 中的 HOUR函数；二是英语单词“小时”的
意思。
hour函数
Microsoft Excel 中 HOUR函数，返回时间值的小时数。即一个介于 0 (12:00 A.M.) 到 23 (11:00 P.M.) 之间的整数。
hour单词
n.小时，钟头；时间，时刻；固定时间；课时
复数：hours
语法信息
可数名词
（1）（人一生中的某个）时候，时期If you refer, for example, to someone's hour of need or hour of happiness, you are referring to the time in their life when they are or were experiencing that condition or feeling.
He recalled her devotion to her husband during his hour of need.
他回忆起她在丈夫困难之时的忠贞奉献。
...the darkest hour of my professional life.
……我职业生涯中最黑暗的时刻。
（2）每天发生或进行某事的特定时间，固定时间You can refer to the period of time during which something happens or operates each day as the hours during which it happens or operates.
...the hours of darkness...
……黑夜…
Phone us on this number during office hours.
上班时间打这个电话给我们。
...outside prison visiting hours.
。。。。。。在探监时间以外
（3）（每周的）工作时间If you refer to the hours involved in a job, you are talking about how long you spend each week doing it and when you do it.
（4）小时An hour is a period of sixty minutes.
They waited for about two hours...
他们等了约两小时
I only slept about half an hour that night.
我那天晚上只睡了大约半个小时。
...a twenty-four hour strike...
....持续24小时的罢工
irregular hours.
我的工作时间相当不固定。
The job was easy; the hours were good.
这份工作很轻松，工作时间也很合适。
复数名词
长时间People say that something takes or lasts hours to emphasize that it takes or lasts a very long time, or what seems like a very long time.
Getting there would take hours.
去那里要花很长时间。
单数名词
（1）（时钟的）钟点，整点A clock that strikes the hour strikes when it is exactly one o'clock, two o'clock, and so on.
（2）时间；时刻You can refer to a particular time or moment as a particular hour .
...the hour of his execution...
……处决他的时间…
The gathering storm had made the day even darker than was usual at this hour.
即将到来的暴风雨使得天空看起来比平时这个时候更昏暗。
短语
（1）See also:
after-hours；下班后；营业（或办公、学习）时间以后If you do something
after hours,you do it outside normal business hours or the time when you are usually
at work.
...a local restaurant where steel workers unwind after hours...
....钢厂工人下班后去放松一下的当地餐馆
Daly kept this school open after hours so it doubled as a community center.
戴利在学生放学后继续开放学校，把它兼作社区中心。
(2)在（某一时段的）任何时刻If you say that something happens at all hours ofthe day or night, you disapprove of it happening at the time that it does or as often as it does.
She didn't want her fourteen-year-old daughter coming home at all hours of the morning.
她不希望自己14岁的女儿凌晨才回家。
...a neighbour's car alarm going off at all hours of the day and night.
.......邻居的汽车警报器没日没夜响个不停。
(3)在凌晨；在下半夜If something happens in the early hoursor in the small hours, it happens in the early morning after midnight.
Gibbs was arrested in the early hours of yesterday morning.
吉布斯于昨天凌晨被捕。
(4)长时间地；不停地If you say that someone does something hour after hour, you are emphasizing that they do it continually for a long time.
He and my mom were arguing every night, hour after hour.
他和我妈妈每天晚上都吵个不停。
（5）整点地If something happens on the hour, it happens every hour at, for example, nine o'clock, ten o'clock, and so on, and not at any number of minutes past an hour.
（6）整点差…分/ 整点过…分If you want to state the time exactly, you can give a number of minutes followed by before the houror past the hour.
（7）在通常营业（或工作、学习）时间之外Something that happens out of hourshappens at a time that is not during the usual hours of business or work.
Teachers refused to run out of hours sports matches because they weren't being paid.
教师拒绝课余安排体育比赛，因为他们不会获得薪酬。
语法参数
Serial_number