In American English date representation, the month comes before the day, followed by the year. In British English the day comes before the month, followed by the year.
American English (US)
12-27-2017 = December 27th, 2017
Convert and Write Out the Date, in Words:
December the twenty-seventh, twenty seventeen
or: December the twenty-seventh, two thousand seventeen
In American English the month is said first, followed by the day.
* The definite article 'the' can be left out:
December twenty-seventh, twenty seventeen
or: December twenty-seventh, two thousand seventeen
British English (UK)
27-12-2017 = 27th December, 2017
Convert and Spell Out the Date, in Words:
the twenty-seventh of December, twenty seventeen
or: the twenty-seventh of December, two thousand and seventeen
In British English the day is said first, followed by the month.