Question

How many seconds are in 4 years?

Answer 1

1 hour = 3600 seconds.

1 day = 24 hours = 24 * 3600 = 86,400 seconds.

1 year = 365 days = 365 * 86,400 = 31,536,000 seconds.

4 years =  4 * 31,536,000 = 126,144,000 seconds