You can make programm sleep (x) hours, mins, secs, miliseconds, microseconds or even nanoseconds!
How to use it:
sleepx::hour(int hours); // Sleep for (x) hours
sleepx::minutes(int mins); // Sleep for (x) mins
sleepx::milliseconds(int milisecs); // Sleep for (x) miliseconds
sleepx::microseconds(int microsecs); // Sleep for (x) microseconds
sleepx::nanoseconds(int nanosecs); // Sleep for (x) nanoseconds
sleepx::seconds(int secs); // Sleep for (x) seconds
sleepx::seconds(float secs); // Sleep for (x) seconds (But with decimal point)