How to write dates

There is a difference between how dates are written in British and American English.

In British English dates are usually written in the day-month-year format, for example:

6 October 2017

In American English dates are usually written in the month-day-year format:

October 6, 2017
(note the comma between the day and the year)

In British English we can also use the abbreviated form as follows:

(different punctuation marks may be used: 6.10.17 or 6-10-17)

Caution is required here, however, as Americans usually put the month first:


As you can imagine, this can lead to ambiguity as the above date might be understood as 10 June 2017 instead of 6 October 2017.

In an attempt to avoid ambiguity resulting from the different ways of writing dates around the world, an ISO standard was adopted in 1988. This uses the year-month-day format as follows: 2017-10-6. However, this format is not widely used in Britain or the US.


How to say dates

6 October 2017 is said as follows:

the sixth of October twenty-seventeen (note “the” and “of”)

October 6, 2017 is said as follows:

October sixth, twenty-seventeen

23 April 2005 is said as follows:

the twenty-third of April two thousand and five

The year 2000 is said as “two thousand”.

We tend to say “two thousand and…” up to 2009.

2010 may be said as “two thousand and ten” or “twenty-ten”.

From 2011 onwards we tend to say “twenty-eleven”, “twenty-twelve” etc.

Years before 2000 are said as in these examples:

1984 — nineteen eighty-four
1902 — nineteen oh two
1848 — eighteen forty-eight
1492 — fourteen ninety-two
1066 — ten sixty-six

As we use ordinal numbers (first, second, third, fourth, etc.) when we say dates, sometimes we add the endings of ordinal numbers when we write dates, as follows:

6th October 2017

October 6th, 2017

This style used to be more popular, but it seems to be rather out of fashion now. If you do use it, remember to add the correct ending (st, nd, rd or th):

1st, 2nd, 3rd, 4th, 5th, 6th, then use th until 21st, 22nd, 23rd, 24th, etc.


Abbreviations of months

All the names of the months have short forms except May and June:

Jan, Feb, Mar, Apr, Jul, Aug, Sept, Oct, Nov, Dec

Remember we always capitalise months, whether we write them in full or abbreviate them. Some style guides may add a full stop/period after the abbreviation, but it is generally OK not to use one.


Abbreviations of days

All the names of days have short forms:

Mon, Tues/Tue, Wed, Thurs/Thu, Fri, Sat, Sun

For Tuesday and Thursday, Tues and Thurs are common, but for the sake of consistency I advocate the three-letter style – bolded above.

Remember we always capitalise days, whether we write them in full or abbreviate them. Some style guides may add a full stop/period after the abbreviation, but it is generally OK not to use one.



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4 Responses to How to write dates

  1. joela says:

    How to say e.g. 1800 in British and American. I’m slightly confused by the American use of “… hundreds” instead of “… century”. And am I correct: “the turn of the 20th century” is e.g. 1898-1902?

  2. Joela – 1800 is said as “eighteen hundred”. If someone talks about “the eighteen hundreds” (the 1800s) they would usually be referring to the entire 19th century, i.e. from 1800 to 1899. However, they could also be referring to the first decade of the 19th century, i.e. the years 1800-1810.
    We are now in the 21st century (the 2000s or “two thousands”); however the 2000s can also mean the decade 2000-2010, as opposed to the 2010s, which is the current decade (the “twenty tens”).
    The phrase “the turn of the 20th century” can be confusing. Back in the 20th century we used the phrase “the turn of the century” to refer to the late 1890s to the early 1900s. Now, I guess the same phrase would refer to the late 1990s to the early 2000s.
    In British English “the turn of the 20th century” refers to the 1890s-1900s period, although not everyone will necessarily know this. So the 1990s-2000s period is “the turn of the 21st century”.
    In American English there is apparently no general agreement. The Chicago Manual of Style states that “the turn of the 19th century” could be understood to mean “the turn of the 19th century into the 20th century”, i.e. the 1890s-1900s period.

  3. Good post. I learn something new and challenging on websites I stumbleupon everyday.
    It’s always helpful to read through articles from other writers and use something from their websites.

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