How to stop time from running backwards on Linux?

Question

Here\'s a little test I\'ve written to verify that time does indeed only run forwards in Linux.

#include 
#include   

bool timeG         


        

Answer 1

It's not that it's running backwards. It'd be better to say that it is not reporting the correct time. This is because computers, without the aid of a dedicated timing subsystem, simply are not capable of reporting time very accurately in single millisecond intervals.

The precision will vary with hardware, the OS and even the power supply. Here is an article for starters. A bit old but communicates the idea nicely.