History of South America

How many seconds in US 1 year?

There are 365 days in a year and each day has 24 hours and each hour has 60 minutes and each minute has 60 seconds. So we can calculate the seconds in a year.

$$ 365\times 24\times 60\times 60 = 31,536,000 $$

Therefore, there are 31,536,000 seconds in US 1 year.