Goal kicks - 15 seconds
Throw ins - 10 seconds
Both from the time the goalie/player has the ball in their control. If over the time, it becomes a corner/throw in to the opposition.
Either that, or as I said earlier, the clock starts when the ball is kicked/thrown.
I thought the Laws say that if you were "injured", you should be treated OFF the pitch. Again, if the clock is stopped, it's irrelevant how much time is taken. The clock only restarts when the referee blows his whistle for the game to continue.
What could possibly go wrong?
;-)