An en-dash is used to connect continuing or inclusive numbers, replacing the word “to” in dates, times, or reference numbers. It is also used instead of a hyphen in compound adjectives when one or more of the elements consists of more than one word.
- 1968–72; 10 a.m–11:15 p.m.; pp. 35–45; New York–London flight
An en-dash is half the length of an em-dash and longer than a hyphen. In copy it is usually typed as a hyphen. In web copy, use the HTML character entity <code>–</code>