NarrowHighway

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The calendar — keeping time by sun and number

cal

The day is one rotation (86400 s), the year one orbit (~365.2422 days); the Gregorian calendar approximates it as 365.2425 by a leap rule. Pillars rest on astronomy (the orbit and rotation) and metrology (the second). The stick (stick_the_calendar_keeping_time_by_sun_and_number) seals the seconds in a day and the Gregorian mean year (tools/seed_calendar.py).

source
Narrow Highway — cal · stick_the_calendar_keeping_time_by_sun_and_number
card id
card_floor_the_calendar
address
WIT.codex.EXP/the-calendar-keeping-time-by-sun-and-number/REF.WITNESSED@narrow-highway

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