for ... minutes; a period of ... minutes
Counter suffix used after a number to express a duration measured in minutes. It emphasizes the length of time, e.g. 5分間 means 'for five minutes' or 'a five-minute period.'
Please wait here for ten minutes.
I waited in front of the station for ten minutes.
The meeting lasted for thirty minutes.
This test has to be finished within thirty minutes.
Written with 分, used for minutes, plus 間, meaning an interval or span. This is a transparent compound spelling for a period of minutes rather than a separate historical derivation claim.