You can do it with a macro containing the following code

Dim strDay As String, strMonth As String, strYear As String, strMonthText As String

Selection.HomeKey wdStory

With Selection.Find

Do While .Execute(FindText:="[0-9]{2}\/[0-9]{2}\/[0-9]{4}", Forward:=True, \_ 

MatchWildcards:=True, Wrap:=wdFindStop, MatchCase:=True) = True 

    strDay = Left(Selection, 2) 

    strMonth = Mid(Selection, 4, 2) 

    strYear = Right(Selection, 4) 

    Select Case strMonth 

        Case "01" 

            strMonthText = " January " 

        Case "02" 

            strMonthText = " February " 

        Case "03" 

            strMonthText = " March " 

        Case "04" 

            strMonthText = " April " 

        Case "05" 

            strMonthText = " May " 

        Case "06" 

            strMonthText = " June " 

        Case "07" 

            strMonthText = " July " 

        Case "08" 

            strMonthText = " August " 

        Case "09" 

            strMonthText = " September " 

        Case "10" 

            strMonthText = " October " 

        Case "11" 

            strMonthText = " November " 

        Case "12" 

            strMonthText = " December " 

    End Select 

    Selection.Text = strDay & strMonthText & strYear 

    Selection.Collapse wdCollapseEnd 

Loop 

End With

Found here:

To insert the date type Alt+Shift+D.

To change the time or date format hit Alt+N+D, click on or scroll to the one you want and use the key combo Alt+D. Hit Enter twice.

I’ll assume that you are talking about one of the handful of date values that Word offers in fields.  I’ll also assume that you are inserting fields through the ribbon / GUI, and that you know how to do that.  OK, when you’re in the “Field” setting window, and you have selected the date you want (“CreateDate”, (current) Date, “PrintDate” or “SaveDate”), click on “Field Codes”.  An “Advanced field properties” pane will appear, with a “Field Codes:” text box that’s prefilled with the name of the field you selected on the left (which is just its display name in all-caps; e.g., “CREATEDATE”, “DATE”, etc.)

Insert \@ "d'th day of' MMMM, yyyy" after that field name; e.g.,

Click “OK”.

Oh, I’m also assuming that you want the month spelled out.  If you want only the three-letter abbreviation (e.g., “Dec”), use MMM instead of MMMM.

Unfortunately, you’re asking the wrong question.  Yes, this question was asked on the 5th day of December, 2017, and the day before was the 4th.  But the preceding three days were the 1st, 2nd and 3rd (not the 1th, 2th and 3th).  21st, 22nd, 23rd and 31st are also exceptions to the “th” rule (but, perversely, 11th, 12th and 13th are not).  This sequence of fields will produce the correct ordinal numbers for English:

(1)     { set the_date { date } }
(2)     { Set day { the_date \@ “d” } }
(3)     { Set dec { = int(day / 10) } }
(4)     { Set d10 { =mod(day,10) } }
(5)     { Set suffix { If dec = 1 “th” { If d10 = 1 “st” { If d10 = 2 “nd” { If d10 = 3 “rd” “th” } } } } }
(6)     { Set format { Quote “d'” { suffix } “ day of' MMMM, yyyy” } }
(7)     { The_Date \@ { format } }

Line numbers are just for illustration / exposition purposes and are not part of the document / code.  This seems to be case-insensitive (except in the date format, where m is minutes and M is month).  And "straight quotes" () and “curly quotes” () seem to be interchangeable.

1. Assign the date to a variable (technically, a “bookmark”) called the_date.  Change the last word to createdate, printdate, or savedate if that’s what you want.
2. Get the day number of the_date (e.g., “Dec 5” → 5) and assign it to the variable day.
3. Get the ten’s digit of day (e.g., 5 → 0, 17 → 1, 23 → 2) and assign it to the variable dec.
4. Get the one’s digit of day (e.g., 5 → 5, 17 → 7, 23 → 3) and assign it to the variable d10.
5. Determine the appropriate ordinal suffix for day.  If dec is 1, then day is between 10 and 19, and the suffix is “th”.  Otherwise, if d10 is 1, 2, or 3, the suffix is “st”, “nd”, or “rd”, respectively.  For all other values, the suffix is “th”.  Then assign it to the variable suffix.
6. Build a format string like the one I used in the first part of the answer.  Concatenate d', the suffix (suffix) from the previous step, and  day of' MMMM, yyyy.  This uses a trick (using the quote field) that I learned at the Microsoft Community; I don’t fully understand it.
7. This is basically a repetition of the first part of the answer, but displaying the_date according to the format format.

To use this, copy the following and paste it into your Word document:

set the_date date
Set day the_date \@ "d"
Set dec = int(day / 10)
Set d10 =mod(day,10)
Set suffix If dec = 1 “th” If d10 = 1 “st” If d10 = 2 “nd” If d10 = 3 “rd” “th”
Set format Quote “d'” suffix “ day of' MMMM, yyyy”
The_Date \@ format

(In the above, the capitalization and spacing (e.g., day / 10 vs. day,10) are arbitrary / random (except in the format string).)

1. On the first line.

• Select date (or createdate, or whichever one you use) and press Ctrl+F9.  It will change to { date } and may have a gray background.  This same transformation will occur every time you press Ctrl+F9, ultimately looking like the first code block (way above).  Do not type any curly braces!
• Next, select the entire line and press Ctrl+F9.

2. On the second line.

• Select the_date \@ “d” and press Ctrl+F9.
• Then select the entire line and press Ctrl+F9.

3. On the third line.

• Select = int(day / 10) and press Ctrl+F9.
• Then select the entire line and press Ctrl+F9.

4. On the fourth line.

• Select =mod(day,10) and press Ctrl+F9.
• Then select the entire line and press Ctrl+F9.

5. On the fifth line.

• Select If d10 = 3 “rd” “th” (at the end of the line) and press Ctrl+F9.
• Then select If d10 = 2 “nd” { If d10 = 3 “rd” “th” } and press Ctrl+F9.
• Then select If d10 = 1 “st” { If d10 = 2 “nd” { If d10 = 3 “rd” “th” } } and press Ctrl+F9.
• Then select If dec = 1 “th” { If d10 = 1 “st” { If d10 = 2 “nd” { If d10 = 3 “rd” “th” } } } and press Ctrl+F9.
• Then select the entire line and press Ctrl+F9.

6. On the sixth line.

• Select suffix and press Ctrl+F9.
• Then select Quote “d'” { suffix } “ day of' MMMM, yyyy” (i.e., from Quote to the end of the line) and press Ctrl+F9.
• Then select the entire line and press Ctrl+F9.

7. On the seventh line.

• Select format and press Ctrl+F9.
• Then select the entire line and press Ctrl+F9.

Note that line 7 is the only one that actually produces any text; the first six are setup and can be moved somewhere like the beginning of the document.  You might want to delete the paragraph breaks between the fields to avoid having them take up a bunch of vertical space.  Then select all the fields (or the entire document, e.g., with Ctrl+A) and press F9 (not Ctrl+F9).  The fields (except for the last one) might all disappear.  If so, this is normal, and you’re done.  If they don’t disappear, press Shift+F9  (again, not Ctrl+F9), and that should do it.

P.S. I checked this on Word 2013, and that’s what the screenshot is from.

Hello how are you?

I`m Marcelo de C., an independent Advisor. It is a pleasure to help you today. I know how frustrating it can be for you, but I will do my best to help you :)

Go to settings>time and language>add clocks for different time zones.

Select the date and time tab.

Change date and time>change calendar settings.

In the format look for English(United States) and select.

In abbreviated date and time Choose the option MM/dd/yyyy.

Click apply and see if it has changed.

I hope the information above helps. Please let me know how it goes.

Have a nice day and stay safe.

Marcelo de C.

This depends alot on the country and document purpose.

In some countries, YYYY-MM-DD is actually the default way or typing dates on legal documents, so every invoice, contract, bank letter, everything comes with YYYY-MM-DD dates.

In some cases the date is technically required to be in this format YYYY-MM-DD, because there are automatic scanners that pull info from paper and recognize this date format (eg. you can scan bills with your banking app and all the data is pulled via the phone camera into the banking app in a specific format, so people don't have to type all the numbers by hand when paying bills, just an example).

However, this usually applies to legal-type documents and not for normal, running text.

assume date is in A1 in YYYY-MM-DD  format

in B1

=DATE(LEFT(A1,4),MID(A1,6,2),RIGHT(A1,2))

format cell B1 as you wish it to appear (mm/dd/yyyy)

or you can do

=Text(DATE(LEFT(A1,4),MID(A1,6,2),RIGHT(A1,2)),"mm/dd/yyyy")

if you want a string value in cell B1

you can then drag fill either of the formula down the column.

--

Regards,

Tom Ogilvy