[Boost-users] Where can I find an example of converting a seconds into a date using boost::date_time?

I need an example of taking a time duration in seconds and converting it to a date using Boost::Date_Time. For example, 805168227 seconds (time from December 31st, 1969, at 4:00 P.M.) = approx. 25 years, 194 days, 1 hr, 50 minutes, 27 seconds = File created on 1994 June 15 5:50:27 (Conversion did not account for leap years). Stephen