I don't see how guestimating a year at 365 days is a bad thing. Its not like the result of duration is going to be used by nasa to calculat some scientific number that needs to be carried to the nearest one-hundred thousandth decimal. 52 weeks into 1 year would just be a nice addition. Anyways, how exact is one day in comparison to one year is the terms you were talkin about code. If one year isn't exactly 365days (24*365 hours), then what is one day's length? 23.26+E23 hours?
