16 weeks, when converted to seconds, amount to a mere 9,676,800 seconds. That's 112,800 minutes, 7,728,000 seconds, or roughly 440 hours. It's even enough time to watch all of the seasons of your favorite TV show from start to finish multiple times over. But remember, while 9 million seconds might seem like a lot, there are many days in a year, and so it works out to just under 3 years worth of seconds. Keep in mind that these numbers are approximate since they are based on 86,400 seconds in a day.