How to write the date and time on a wedding invitation

The first choice decides most of the others. On a formal invitation, the date and the time are written out in words. On a relaxed or modern one, numerals are fine. Joy’s wording guide puts it simply: spell things out for a formal event, and use numerals if you want a casual feel.

British stationers say much the same. Hawthorne & Ivory, a UK studio, sums it up as words for formal and numbers for modern, and admits a personal preference for words because they look softer on the card. Dotty About Paper lists several acceptable ways to write the same date and time, from “Half past two” to “2:30pm,” and leaves the choice to you, with the note that a formal wedding will probably want words.

Whichever you pick, pick it once. Joy advises keeping the style consistent across all your stationery, so a card that spells out the date should spell out the time too.

The formal pattern is the day of the week, then the date as an ordinal, then the month: “Saturday, the twelfth of June.” Joy gives a full example in the same shape, with the year following after a comma.

Capitals are where people slip. The Emily Post Institute says the day of the week and the month are capitalized and the year is not, so you write “Saturday” and “June” but “two thousand twenty-seven” in lower case. Pemberly Fox, a London stationer, keeps capitals for names, dates and titles, and puts small words such as “at,” “on” and “and” in lower case.

Compound ordinals take a hyphen: “twenty-first,” “thirty-first.” Single ones do not: “twelfth,” “third.”

In American formal style there is no “and” in the year. The Emily Post Institute is explicit, and so is Joy: write “two thousand twenty-seven,” not “two thousand and twenty-seven.”

British invitations commonly keep it. A traditional UK sample from Weddings Hub reads “Saturday the fifteenth of August Two thousand and twenty-six at two o’clock.” Neither form is a mistake in its own country. The thing to avoid is mixing them on one card, or across the cards in one suite.

Do you need the year at all? Here the guides disagree. Emily Post includes it, spelled out. Pemberly Fox says the year is optional, on the reasoning that guests will assume the nearest matching date. Pemberly Fox also notes that the older British habit was to write dates, times and years in numbers, and that spelling them out grew common under American influence. If your invitation arrives within the same year as the wedding, leaving the year off is safe; if it goes out in the autumn for a date the following year, include it.

For a time on the hour, everyone agrees on “o’clock”: “at four o’clock.” For the half hour, the sources split along the Atlantic.

The Emily Post Institute says to use “half after,” not “half past” or “four-thirty.” Joy agrees for formal invitations, giving “half after five o’clock,” and says “half past five o’clock” or “five-thirty” suit less formal ones. British usage is “half past”: Hawthorne & Ivory writes “half past one” in its own examples, and Wikipedia’s guide to British time notation gives “half past ten” as the formal form of the everyday “half ten.”

So “half after four” is the strict American formal choice, and “half past four” is correct British English and acceptable in American style when the invitation is a little less formal. The converter above writes “half after” in its American column and “half past” in its British one, and offers only times on the hour or the quarter hour, the times a formal card prints. None of the guides we read covers quarter hours, so both columns write “a quarter past” and “a quarter to” the same way.

A formal card spells the time out in words, so a.m. and p.m. have no place on it. The question is whether to add a phrase like “in the evening” instead. The Emily Post Institute calls “in the afternoon” and “in the evening” unnecessary. Joy says invitations usually skip them unless the hour could be misread, such as an eight or nine o’clock start that might be morning or night.

British stationers are more relaxed about it. Hawthorne & Ivory writes “two o’clock in the afternoon” as a natural example, and Pemberly Fox lists “3 o’clock in the afternoon” among its accepted forms.

Our view: add the phrase only when the hour is ambiguous. A four o’clock ceremony needs no help; an eight o’clock one does. The converter follows that rule and adds “in the morning” or “in the evening” only from eight to eleven o’clock.

An all-numeric date means different things in different countries. In the United States the order is month, day, year, so 12/06/27 is December 6, 2027. In the United Kingdom the order is day, month, year, so the same digits are 12 June 2027. Wikipedia’s articles on both countries’ notation note that the difference causes confusion, and the American article cites the Chicago Manual of Style discouraging all-numeric dates because readers outside the United States may not understand them.

June 12, 2027 is a Saturday; December 6, 2027 is a Monday. A guest who reads the other convention lands on a date six months away, on a different day of the week.

UK stationers do show day-first numeric styles such as 10.09.22 as an option, and on a card where every guest lives in one country, that is readable. If even one guest lives abroad, write the month as a word: “12 June 2027” or “June 12, 2027” cannot be misread anywhere.

Both formal and casual styles name the day. Dotty About Paper recommends it because most guests will assume a wedding is on a Saturday, and Hawthorne & Ivory says it matters most for a weekday wedding, where guests may need to book time off work.

Then check that the weekday matches the date in that year. A Saturday in 2026 is a Sunday in 2027, so a date copied from last year’s template will be wrong. Proof it against a calendar, not from memory, before anything goes to print.