It does take time into account : "This system can be quite addictive (at least that’s what I’ve found) so you may find it a good idea to set strict working hour

It does take time into account : "This system can be quite addictive (at least that’s what I’ve found) so you may find it a good idea to set strict working hours. Stop dead when the time is up, and start again at the same place when it’s time to start again. I admit I am not very good at following this advice myself!"