Depends on when they were born.
504,576,000
No studies have been done on this
well if its leap year on 2012 then figure out how many years you have been alive for and divde that by 4
8,766 hours in one year.
A year is equal to 8,760 hours.
A year has 8760 hours
to symbolize how many years you have been alive
if you mean how many hours you should sleep in a year it would be 3,650 hours of sleep for a regular year not a leap year
In the typical year there are 8,760 hours. In a leap year, there are 8,784 hours.
One year is about 8,765.81 hours.
1 year = 8,765.81277 hours
8,765.81 hours.