See the #if below. I'm pretty sure these should do the same thing. The expires_from_now() version does what I'd expect and calls onTimer() once a second. The expires_at() version never calls onTimer(). Even though 'expires_at() const' returns 1s from now: doit now =2010-May-21 15:07:24.882854 expires_at =2010-May-21 15:07:25.882854 <and nothing more> //********************************************************************** *********** #include #include #include <iostream> using std::cout; using namespace boost::asio; using namespace boost::posix_time; io_service ioService; deadline_timer timer(ioService); seconds s1(1); void doit(); void onTimer(const boost::system::error_code&){ doit(); //repeat forever } void doit(){ ptime now=microsec_clock::local_time(); cout<< "doit now ="<< now <

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