How many seconds are in a day? Use the conversion equivalency 24 hours = 1 day, 60 minutes = 1 hour, 60 seconds = 1 minute

There are 24 hours in a day, 60 minutes in an hour, and 60 seconds in a minute. Multiply: 24 × 60 × 60 = 86,400 seconds in one day. Therefore, the correct choice is “86,400 seconds in one day.”

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