You can't manage time, you actually only manage what you do during time. So the management issue is not so much about time, it's more about how do you manage your focus, how do you manage your actions and your activities in terms of what you do.
David AllenThe problem is, is when your focus is created by a crisis, then the frontal lobe shuts down essentially, the frontal cortex which is your intuitive intelligence. So you get very clever and very stupid in a crisis. Also, you pump adrenalin into your body from what you - physiologically you'll crash.
David AllenEverything youโve told yourself you ought to do, your mind thinks you should do right now. Frankly, as soon add you have two things to do stored in your RAM, youโve generated personal failure, because you canโt do two things at the same time. This produces an all-pervasive stress factor whose source canโt be pin-pointed.
David Allen