calendar day

plural calendar days

1. lawA timespan of exactly 24 hours, measured from one midnight to the next.

   "[T]he Games were stopped for a full 24 hours, though it was not a calendar day."

   2012 May 2, Simon Burnton, “The terrorist outrage in Munich in 1972”, in The Guardian, UK, retrieved 26 May 2014

   2 more examples

   Travel insurance is available at the special price of pounds 4 for one calendar day, pounds 10 up to 36 hours.

   1997 November 21, “French shopping and lunch from pounds 29”, in The Independent, UK, retrieved 26 May 2014

   The $28 billion budget was approved by committees in both houses Wednesday. Since one calendar day must elapse before a floor vote, the votes will take place after midnight Thursday unless Republicans agree to suspend the rule.

   2004 June 24, Laura Mansnerus, “Trenton Approves $28 Billion Budget Plan”, in New York Times, retrieved 26 May 2014

   Synonyms: civil day

2. A day having a conventional designation on a recognized calendar, such as a numerical identification within a named month.

   '[T]is wonderful where or when we ever got anything of this which we call wisdom, poetry, virtue. We never got it on any dated calendar day.

   1844, Ralph Waldo Emerson, chapter 2, in Essays: Second Series

   2 more examples

   My story started on a calendar day — July 2nd,1977 — and ended on a calendar day — February 14th, 1978 — but in between there was no calendar.

   2001, Yann Martel, Life of Pi, published 2007, →ISBN, page 186

   The number 666 has long held significance . . . that it's a mark of the devil. But now that the actual calendar day is about to arrive — on Tuesday, 6/6/06 — it's not only the superstitious among us who are looking ahead nervously.

   2006 June 5, Jeremy Caplan, “A Devil of a Day”, in Time, retrieved 26 May 2014