FiveThirtyEight can say it is wildly inaccurate, but then again their time keeping can be wildly inaccurate.
Based on their comment that there is a stoppage about every 38 seconds makes me think they are stopping the clock every time a whistle is blown or a ball goes out of bounds. In soccer this is not the case, as the clock is not considered to be running only when the ball is in play.
If the ball goes out for a throw, the clock would remain running, unless there is some sort of unnecessary delay. Same goes for corner kicks as the setup is deemed to be part of the game and thus the clock runs.
Injuries when a trainer comes onto the field would be an example of when the clock would stop.
I'm not saying it is the most accurate thing in the world. However, most teams can plan accordingly because they already know approximately how much time there will be added. At the end of the first half, 1-3 minutes is common, while at the end of the second half 3-6 minutes is common.
Based on their comment that there is a stoppage about every 38 seconds makes me think they are stopping the clock every time a whistle is blown or a ball goes out of bounds. In soccer this is not the case, as the clock is not considered to be running only when the ball is in play.
If the ball goes out for a throw, the clock would remain running, unless there is some sort of unnecessary delay. Same goes for corner kicks as the setup is deemed to be part of the game and thus the clock runs.
Injuries when a trainer comes onto the field would be an example of when the clock would stop.
I'm not saying it is the most accurate thing in the world. However, most teams can plan accordingly because they already know approximately how much time there will be added. At the end of the first half, 1-3 minutes is common, while at the end of the second half 3-6 minutes is common.