The usual June abbreviation is Jun., with a period, and it turns into JUN with no period when a calendar or label is printed in capital letters. Because the full word has only four letters, many writers never shorten it at all. Saving one letter rarely helps, so in sentences you will almost always see June written out.
The short form earns its place where every column has the same width: calendar grids, spreadsheets, medicine labels and date stamps. Below you can see which form suits which job and how June fits into the numeric date styles on forms.
Quick facts
Abbreviation
Jun.All caps form
JUN, no periodMonth number
6, or 06 in two digit datesNews style
Never shortened in datesUsed in
Calendars, charts, tables, labels, file namesNot to be confused with
Jan. (January) and Jul. (July)
Every June abbreviation and where it goes
| Form | Where it is used | Sample |
|---|---|---|
| June | Sentences, letters, invitations, news stories | June 14 |
| Jun. | Tables, footnotes, charts where all months are cut to three letters | Jun. 14 |
| JUN | Printed calendars, receipts, ID cards, food and drug labels | 14 JUN |
| 06 | Number dates on forms | 06/14 |
| 6 | Short number dates in notes | 6/14 |
The full set for all twelve months is on the month abbreviations page, and more everyday short forms live in common abbreviations.
Why June is usually written out
Most style guides for news and school writing shorten only the longer month names when a date is given. June, along with March, April, May and July, stays whole. The idea is simple: "Jun." saves one letter but adds a period, so it is no shorter on the page and is a bit harder to read.
The rule changes inside tables and charts. If the column headers read Jan., Feb., Mar. and so on, then Jun. belongs in the row too, so every label lines up. Consistency matters more than the letter count there.
School newsletter: "The last day of classes is Friday, June 12." Written out, because it sits in a sentence. The attached lunch menu, laid out as a grid, labels its columns MAY and JUN.
June on forms, labels and number dates
June is the sixth month, so its number is 6. Two digit date boxes want 06, as in 06/14 for June 14 in the American month first order. Many countries put the day first, so 14/06 means the same date there. When a form is shared across borders, writing the month as letters, "14 JUN," removes any doubt.
- Expiration dates: food and medicine packs often print "EXP JUN" with a day and year next to it.
- Military and travel papers: dates usually run day, month, year, with the month in capital letters, such as 14 JUN.
- File names: number dates in year, month, day order (with 06 for June) sort in the right order on a computer.
Periods, capitals and plural
Put a period after Jun. in mixed case writing, because it is a shortened word. Drop it in the all caps form JUN, which is treated as a code. Month names are always capitalized in English, so jun. in lowercase looks like an error.
The plural is rare but simple: "the Junes of my childhood" or "two Junes in a row." There is no shortened plural form in common use. When you speak, you never say "jun" aloud; you read the word as June, just as you read Dr. as doctor.
Jun. mix ups to watch for
- Jun. vs Jan.: in quick handwriting the u and a can look alike. On medical or legal papers, spell out the month or use the number.
- Jun. vs Jul.: June and July sit side by side and both begin with Ju. When a page uses three letter forms, double check the third letter.
- Jun. vs Jr.: Jr. means junior, a name suffix, not a month.
- Jun as a name: it is also a given name in several languages, so read the context.
For the same issue with the month that comes two before June, see the April abbreviation.
Using the June abbreviation in real writing
- "Sales, Jan. to Jun.: up 8 percent" (a chart title where space is tight).
- "Best by 30 JUN" (a label printed in capitals).
- "Our anniversary is June 3." (a sentence, so no short form).
- "Report period: 06/01 to 06/30" (a form that wants numbers).
- "Jun. 21: longest daylight of the year in the north" (a calendar note).
Questions people ask
What is the abbreviation for June?
It is Jun., or JUN in all capitals. Many writers skip the short form, since June has only four letters.
Does Jun. need a period?
Yes, in normal mixed case writing it does. The capital letter form JUN, used on labels and printed calendars, usually has no period.
What number month is June?
June is the sixth month, so it is 6, or 06 in a two digit date box. It has 30 days.
Should I abbreviate June in an essay?
No. In sentences, essays and letters, write June in full. Save Jun. for tables, charts and other tight spaces.