# How many seconds are in a 24 hour day?

Second and hour are units to measure time.

## Answer: 24 hours = 86400 seconds

Let's convert 24 hours into seconds.

**Explanation:**

We know that,

1 day = 24 hours

In 1 hour there are 60 minutes and in 1 minute there are 60 seconds.

Therefore number of seconds in 1 hour = 60 × 60 = 3600 seconds

Now, number of seconds in 24 hours or in a day = 24 × 3600 = 86400 seconds