Spanish Capitalization
Do you capitalize the date when writing a formal letter? How is the correct date written? Is it: El día 18 de agosto, del 2016 or 18 de Agosto, 2016?
1 Answer
I am not sure why you included día, or used del. See this on correct format:
http://spanish.about.com/od/writtenspanish/qt/dates.htm
By Gerald Erichsen
Updated July 24, 2015.
The typical way of writing dates in Spanish follows this pattern:
5 de enero de 2012 (January 5, 2012)
21 de febrero de 2019(February 21, 2019)
Note that in Spanish the name of the month isn't capitalized. You can also spell out the number (as in cinco de enero de 2012), but this is less common than the format above. In parts of Latin America, especially in areas with U.S. influence, you may also see the form "enero 5 de 2012" in occasional use.
Sometimes, but not often, you may see a period used in the year, as in 2.006. You should not imitate English by using forms such as tercero de marzo as a direct translation of "third of March." The one exception is that you may say "primero" for "first," so "January 1st" can be said as primero de enero. In numeral form, that's 1o, or a "1" followed by superscripted "o," not a degree sign. Less commonly, the form 1ero is used.
There is more not relevant to your question. Additional on capitalization here:
http://spanish.about.com/od/writtenspanish/a/capitalization.htm
The part on dates:
Calendar
Names of the days of the week and months of the year use lower-case letters. Hoy es martes. (Today is Tuesday.) México celebra su independencia el 16 de septiembre. (Mexico celebrates its independence on September 16.)