Developed back at 15,700, the clock takes into consideration • the number of waking hours in a day, • preferring long blocks of time for working on things, and • standard time being better than daylight time.
This clock is aimed at 15 waking hours in a day spread out over five three-hour periods with the beginning and end each roughly as close to sunrise and sunset respectively as possible and the half-way point being close to solar noon.1% of 3 hours = 108 seconds
Spreadsheet Version — The embedded version does not stay current.
Weather page excerpt with Clear Sky Chart (formerly known as a Clear Sky Clock):
46 47 47 48 48 49 48 49 50 50 53 55 57 57 58 59 57 54 N/A 49 47 46 44 43 41 42 40 40 39 37 37 37 39 41 41 44 45 46 46 43 43 42 42 40
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Heavens-Above