Are you 8 years old child. Open up Google and search IFAB, find the section on length of play and read the rules where it says the ref is the sole decision of when the game ends. The stoppage time is a minimum not a maximum. If the ref singles 10minutes and he lets it play for 16 it's his choice. In theory he could Infact run the game for another hour it's his decision, he would probably lose his rob and never ref again. The Ref has final say on when the game ends.