nine to five 九点至五点，正常办公时间 

【例句】
I do not want to work from nine to five.
我希望我以后不是九点到五点的工作。

After years working nine to five in a boring job, he set off to sail round the world.
做了多年朝九晚五枯燥的办公室工作之后，他出发去做环球航行。