How many nanoseconds are there in one year?

Answer 1

To calculate the number of nanoseconds in one year, we need to consider the conversion factors. There are 1 billion nanoseconds in one second (1 second = 1,000,000,000 nanoseconds). There are 60 seconds in a minute, 60 minutes in an hour, 24 hours in a day, and approximately 365.25 days in a year. Therefore, the total number of nanoseconds in one year is approximately 31,536,000,000,000,000 nanoseconds.

Answer 2

Work it out by basic dimensional analysis!

One (average) year = 365.24 days

One day = 24 hours

One hour = 60 minutes

One minute = 60 seconds

so there are 365.24 * 24 * 60 * 60 seconds in a year.

One nanosecond is 10**9 seconds so multiply the above answer by 10**9 (or just shift the decimal point 9 places, it's loads easier)

BTW this same approach can be used to convert any comparable sets of units, e.g. miles per hour into metres per second, or even furlongs per fortnight if you really want to try.

Answer 3

There are approximately 31.5 trillion nanoseconds in one year.