Spinoff from the dumb watch thread

I actually somewhat agree with the mans primise, we really dont need watches, well, not if we were all trained properly. I was taught at a young age how to tell time simply by staring up into the sun. Works literally every time and I can be as acurate to within 20 minutes or so. It usually amazes people when they ask what time it is and I simply tell them to use mother natures clock and just look up. How many of you know how to do this and have pased it on to future fortunate generations?