Number + 分
分 (fēn) is a measure word for minutes when telling time. It is placed after a number to indicate a duration or point in time measured in minutes, and is one of the most basic time-related words in Chinese.
现在是下午三点四十五分。
xiànzài shì xiàwǔ sān diǎn sìshíwǔ fēn.
It is now three forty-five in the afternoon.
等我五分,我马上就下来。
děng wǒ wǔ fēn, wǒ mǎshàng jiù xiàlái.
Wait five minutes for me; I'll be right down.
从这儿走到地铁站大概要十分。
cóng zhèr zǒu dào dìtiězhàn dàgài yào shí fēn.
It takes about ten minutes to walk from here to the subway station.