Good idea there are bits and pieces already ranging from philosophical notions of duree, to various time/task management ideas like ZTD, pomodoro. Regarding cyclical time I make use of of solar-lunar iphone app and portable sundial to remind me of the circular nature of time and my place in the grand scheme of things. One could argue that prayer/time-out schedules of christians, jews and muslims also help in this regard. Someone on HN made designed a calendar/time system counting down instead of up among some other things.