nanotime

I created a filter that monitors the length of a request. long start = System.nanoTime(); ... long end = System.nanoTime(); How can I get the number of milliseconds from this now? (end - start) / 1000000 1 microsecond = 1000 nanoseconds 1 millisecond = 1000 microseconds Note, that the result will be rounded down, but you usually don't get true nanosecond accuracy anyway (accuracy depends on the OS). From the Javadoc on nanoTime() : This method provides nanosecond precision, but not necessarily nanosecond accuracy. Also note that you can use the TimeUnit class to help with conversion. With

The title is pretty much self-explanatory, I'm killing myself over this simplicity. Looked here , but it isn't much helpful. I think that the Stopwatch class is what you are looking for. If you want a timestamp to be compared between different processes, different languages (Java, C, C#), under GNU/Linux and Windows (Seven at least): Java: java.lang.System.nanoTime(); C GNU/Linux: static int64_t hpms_nano() { struct timespec t; clock_gettime( CLOCK_MONOTONIC, &t ); int64_t nano = t.tv_sec; nano *= 1000; nano *= 1000; nano *= 1000; nano += t.tv_nsec; return nano; } C Windows: static int64_t

I want to convert the result of System.nanoTime() to a date. public void tempBan(Player p, Player banner, int timeInSeconds){ Long timeInNano = (long) (timeInSeconds * 10^9); int newTime = (int) (System.nanoTime() + timeInNano); // here I want to convert newTime to a date } I have converted the seconds into nanoseconds by multiplying by 10^9. Now I need to convert the current system time plus the parameter which I converted into nanoseconds into a date. Cel Skeggs Unfortunately, System.nanoTime() is not what you want for this. To quote the JavaDoc: This method can only be used to measure

Is this even possible in PHP? If not, what is the highest precision available? The microtime function is what you're looking for. PHP does not supply a function that has higher precision than microseconds. You can use the system function to get the value straight from the machine if you are running Linux: $nanotime = system('date +%s%N'); %s is the amount of seconds, appended by %N , which is the amount of nanoseconds. microtime() is the highest precision using PHP's vocabulary. You can also make a system call by using Unix date and specify %N format if you need nanosecond accuracy. Unix ntp