D-day or D-Day
Thread poster: John Fossey

John Fossey  Identity Verified
Local time: 20:40
Member (2008)
French to English
Jun 10, 2014

Is there any convention whether the "day" in D-day (Normandy invasion) should have a capital "D" or not?

[Edited at 2014-06-10 16:50 GMT]


Vasily Zvere (X)  Identity Verified
Russian Federation
Local time: 10:40
English to Russian
D Day Jun 10, 2014

Hi John!
D Day only!
For instant answer try Wiki or see BBC link below:


Gerard de Noord  Identity Verified
Local time: 04:40
Member (2003)
German to Dutch
+ ...
It depends Jun 10, 2014

The oficial Dutch spelling is D–day.



Bernhard Sulzer  Identity Verified
United States
Local time: 22:40
English to German
+ ...
D-Day Jun 11, 2014

Capital D, yes.


Normandy landings:

[Edited at 2014-06-11 01:48 GMT]


Michael Wetzel  Identity Verified
Local time: 04:40
German to English
Guardian style is lower case Jun 11, 2014

The Guardian uses "D-day" for the historical event and for its figurative use:

New Oxford Dictionary for Writers and Editors has "D-Day".

I can't imagine ever writing "D-day" in a US context: Minimal capitalization is never used in this kind of context there. I know this convention from the UK (where either version may be required), but I have no idea what applies in Canada or elsewhere in the world.

So, there are different conventions and I would say "D-Day" is probably the safer bet.


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D-day or D-Day

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