How many hours in 74 years?

Answer 1

To calculate the answer: There are 365 days in a year, and 24 hours in a day. So you would multiply 365 x 24 which = 8760 hours in one year. So to calculate how many hours are in 74 years, you then multiply the number of hours in one year (8760) by 74, which is 648,240 hours.

But if you take into account that leap year comes every four years, which means an extra day (and an extra 24 hours), you need to select a starting date for when the 74 year time period starts, then determine which of those years are leap year and add an extra 24 hours for each leap year, then calculate from there.