D-Day (military term)

When used in combination with numbers, and plus or minus signs, these terms indicate the point of time following or preceding a specific action, respectively.

Planning papers for large-scale operations are made up in detail long before specific dates are set.

Thus, orders are issued for the various steps to be carried out on the D-Day or H-Hour plus or minus a certain number of days, hours, or minutes.

Other languages have terms equivalent to D-Day such as "Hari H" (Indonesian),Час Ч (Russian), Dagen D[citation needed] (Swedish), Dan D (Serbo-Croatian, Slovene), E eguna (Basque), Jour J (French), Lá L (Irish), Tag X (German), and Ziua-Z (Romanian).

"[5] D-Day for the invasion of Normandy by the Allies was originally set for June 5, 1944, but bad weather and heavy seas caused U.S. Army General Dwight David Eisenhower to delay until June 6 and that date has been popularly referred to ever since by the short title "D-Day".