Depending on how quickly a person counts, it could take a while to reach billion. It would take roughly 31 years, 251 days, 7 hours, 46 minutes, and 40 seconds to count continuously at a rate of one number every second.
The phrase “billion” in the United States is represented by the number 1 followed by 9 zeros, or 1,000,000,000. One billion seconds are initially divided by 60 to obtain the number of minutes, which is then used to calculate the projected amount of time needed to count continuously from one to one billion.
In order to calculate the number of hours and days, the value is further divided by 60 and then by 24. The answer is once more divided by 365.25, with the decimal part accounting for leap years, to get the number of years.