How Many Seconds in a Day?

Let’s see… There are 60 seconds on 1 minute and 60 minutes in 1 hour. That means there are 60×60 seconds in one hour, or 3600. We also know that there are 24 hours in 1 day. Since we know know that there are 3600 seconds in 1 hour the number of seconds in 24 hours would be equal to 24×3600 or 86,400!