A day has how many seconds in it?

Minutes in a day computation

There are 24 hours in a day, 60 minutes in an hour, and 60 seconds in a minute. Consequently, 24 hours a day multiplied by 60 minutes a day and 60 seconds a minute equals 86400 seconds per day.

One day is equal to 24 hours × 60 minutes × 60 seconds, or 86400 seconds every day.