Hello Vicente, thanks for the fast answer and your great library! You can rely on #if defined ANDROID. Regarding process_cpu_clock, I have experienced that following code provided on Linux wrong text output, while on Windows was ok: { boost::stopwatches::stopclock<> timer; ... some work } I was not even able to convert units: { stopwatch<process_cpu_clock>::duration d = t.stop(); real_time = microseconds( d.count().real).count(); // needs to be multiplied by 1000 } I'm not sure if I'm using conversion right way, but at least the stopclock text output indicates some problem. BR, Libor -- View this message in context: http://boost.2283326.n4.nabble.com/chrono-Thread-clock-compatibility-problem... Sent from the Boost - Dev mailing list archive at Nabble.com.