calendar day

== English == === Noun === calendar day (plural calendar days) (law) A timespan of exactly 24 hours, measured from one midnight to the next. A day having a conventional designation on a recognized calendar, such as a numerical identification within a named month. ==== Synonyms ==== (24 hours, measured from one midnight to the next): civil day ==== Translations ==== === References === “calendar day”, in OneLook Dictionary Search.