calendar day

calendar day (plural calendar days)

1. (law) A timespan of exactly 24 hours, measured from one midnight to the next.
   • 1997 November 21, “French shopping and lunch from pounds 29”, in The Independent, UK, retrieved 26 May 2014:

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

   • 2004 June 24, Laura Mansnerus, “Trenton Approves $28 Billion Budget Plan”, in New York Times, 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.

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

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

2. A day having a conventional designation on a recognized calendar, such as a numerical identification within a named month.
   • 1844, Ralph Waldo Emerson, chapter 2, in Essays: Second Series:

     '[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.

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

     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.

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

     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.

• (24 hours, measured from one midnight to the next): civil day

• “calendar day”, in OneLook Dictionary Search.