Yeah that irked me as well. "1.5 minutes" "One and a half minutes" "one minute and thirty seconds" The use of the colon to separate hours/minutes and minutes/

Yeah that irked me as well. "1.5 minutes" "One and a half minutes" "one minute and thirty seconds" The use of the colon to separate hours/minutes and minutes/seconds means that you need to supply units to tell which it is, but "1:30 minutes" seems wrong.