How long does a cricket test match take?

It depends on the variant of cricket being played.

A Twenty20 match, intended to be fast-paced, generally plays over the course of three to four hours.

A One Day International match, having more overs, will play out over a longer period of the day (some ODI matches have run for over 8 hours, and rain can delay play into a second day).

First-class cricket typically sets a maximum length of time the game can be played. Most first-class games run for no more than four days; Test cricket usually runs for no more than five days.