Not sure if this is something that is frowned upon, but I'm just curious if other people do it. I tend to set my watch 15 minutes ahead of time, which in same strange way helps me get to meetings ahead of time (or at least on time). I actually noticed that all the clocks in my house are 15 minutes fast too (not done by me).
...or do you guys set it tepat tepat? 
U lack discipline. Tsk tsk tsk. Just kidding. I used to that. Setting it forward. Not 15 minutes but maybe 10 minutes. But to me, now, as i get older, i try to be more accurate. On the dot time setting against Astro decoder or something. But does not work on all watches as some will tend to run faster after a few weeks. Rolex is accurate, and Valjoux 7750 is accurate. Even my ETA 2824 is accurate on my Oris. Lemania on the Moonwatch aint accurate, run fast 5 mins after one month. But thats ok. U have your iPhone to re-coordinate. My small Breitling now runs faster, altho COSC from factory, i never serviced it for 9 years, so thats the problem.