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Time: ideas and frameworks explained

A collection of ideas, frameworks and techniques related to Time, explained clearly so they are easy to understand and share.

Chinese zodiac calendar showing the 12 zodiac animals, their personality traits, and zodiac years from 2025 to 2036, with 2026 marked as the Year of the Horse and early-2026 births belonging to the Year of the SnakeChinese Zodiac 2026: Year of the Horse, Animals, Years, and MeaningsWhat is the Eat The Frog time management and productivity technique and its meaning with a person about to eat a frog and a to-do listEat the frogWhat is Naismith's Rule for calculating walking time in the mountains example explained with a mountain ridge with hikers and lines for the horizontal distance and time and ascent and timeNaismith's Rule for mountain hiking timeFortnightly: a person considers whether 'biweekly' really means "twice a week" or "every two weeks" and resolves to use fortnightly for "every two weeks" in the future.FortnightlyWhat is a time Hierarchy example explained: a lush, verdant, coniferous alpine forest is depicted as a means of explaining the range of layers within any durable system that develop at different speeds. From the individual needles on the trees that develop over a year, to the surrounding biome, 10,000 years in the making. Time hierarchyDays of the week and their Norse Gods: Tyr for Tuesday, Odin for Wednesday, Thor for Thursday and Frigg for Friday. And the Sun, Moon and Saturn for Sunday, Monday and Saturday.Days of the weekWhat is Flow: the psychology of optimal experience illustrated with climbing, clear goals, feedback and matched challengeFlowWhat is Manager Time Maker Time example explained: Paul Graham's manager schedule maker schedule illustrated with Manager Time, on the left shows someone in their office at their laptop, scheduling in meetings and calls throughout the day, neatly managing time with hourly and half-hourly slots in their calendar. On the right, Maker Time ideally does away with any scheduled meetings or calls to allow for an open day for our worker at their desk to grind through a complex problem or new project. The passing of time is only marked by day turning to night. Manager time, maker timeThe cost of being late illustration: an executive walks into a meeting 10 mins late adding up to 100 total lost minutes of everyone else's timeThe cost of being lateWhat is Marchetti's constant example explained: chart showing how Berlin increased in size with new means of travelling faster through walking, electric trams, and subways, to carsMarchetti’s constantWhat is the Pomodoro Technique in 3 steps: plan your tasks, complete one 25-minute pomodoro with a 5-minute break, and repeat for four pomodoros before taking a longer break.The Pomodoro Technique: Stay Focused and Get More DoneWhat causes seasons showing how it is caused by the earths tilt and light hitting differently in the north and south hemispheresSeasons9-enders (nine-enders) explanation: people approaching their 30s, 40s and 50s, examining their lives for meaning and setting off skydiving, running marathons and climbing Everest9-Enders (nine-enders)Isochrones illustration: An aerial view of London shows enclosed concentric, but irregular shapes, radiating out from the centre of the city, denoting areas of equal travel time; from 5 minutes to 30 minutes. IsochronesUK vs US date writing

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