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Astrology wiki
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1 terms
Time and calendars
Civil day →
Also: local calendar day
A date interval governed by the local civil clock and calendar. Its duration need not be 24 hours when clock rules change.
Word origin, evidence & sources
Word origin · etymology
English civil + day; civil comes through French from Latin civilis.Civilis derives from civis, citizen. Here civil identifies society’s clock/calendar convention; the compound’s earliest technical use is not established by this entry.
How we know · epistemology
Calendar convention and historical time-zone records.The date’s boundaries depend on the chosen time-zone rules. IANA cautions that its records do not establish every local historical clock practice, especially before 1970.