Demonstrate some simple uses of time periods. using namespace boost::posix_time; using namespace boost::gregorian; //Create a simple period class to contain all the times in a day class day_period : public time_period { public: day_period(date d) : time_period(ptime(d),//midnight ptime(d,hours(24))) {} }; int main() { date d(2002,Feb,1); //an arbitrary date //a period that represents a day day_period dp(d); ptime t(d, hours(3)+seconds(5)); //an arbitray time on that day if (dp.contains(t)) { std::cout << to_simple_string(dp) << " contains " << to_simple_string(t) << std::endl; } //a period that represents part of the day time_period part_of_day(ptime(d, hours(0)), t); //intersect the 2 periods and print the results if (part_of_day.intersects(dp)) { time_period result = part_of_day.intersection(dp); std::cout << to_simple_string(dp) << " intersected with\n" << to_simple_string(part_of_day) << " is \n" << to_simple_string(result) << std::endl; } return 0; } ]]>